User Guide

• 1 Introduction
  • 1.1 About Recretary
  • 1.2 Overview of the User Interface
• 2 Using the user guide
  • 2.1 Format
  • 2.2 Navigation
• 3 Quick start
  • 3.1 Installation
• 4 Features
  • 4.1 Contact Management
    • 4.1.1 Adding a person: addcontact
    • 4.1.2 Listing all persons: listcontact
    • 4.1.3 Editing a person: editcontact
    • 4.1.4 Finding persons: findcontact
    • 4.1.5 Deleting a person: deletecontact
    • 4.1.6 Clearing all contacts: clearcontact
  • 4.2 Meeting Management
    • 4.2.1 Adding a meeting: addmeeting
    • 4.2.2 Adding a participant into a meeting: addpart
    • 4.2.3 Delete a participant into a meeting: deletepart
    • 4.2.4 Listing all meetings: listmeeting
    • 4.2.5 Editing a meeting: editmeeting
    • 4.2.6 Finding meetings: findmeeting
    • 4.2.7 Deleting a meeting: deletemeeting
    • 4.2.8 Clearing all meetings : clearmeeting
    • 4.2.9 Remind meetings: remindmeeting
    • 4.2.10 Exporting meetings in .ics format : exportmeeting
    • 4.2.11 Automatic meeting reminder
  • 5 General
    • 5.1 Viewing help : help
    • 5.2 Undo : undo
    • 5.3 Command Session History
    • 5.4 Update user preference : edituserpref
    • 5.5 Viewing previous commands
    • 5.6 Saving the data
    • 5.7 Exiting the program : exit
• 6 FAQ
• 7 Command summary
• 8 Prefix summary
• 9 Glossary

1 Introduction

1.1 About Recretary

done by: Tan Xuan Zhi

Hello, fellow secretaries!

Welcome to Recretary, a desktop application to help you manage contacts and meetings so that you can be freed from these tedious tasks.

If you are still keeping track of your contacts and meetings manually and find that tiresome, then Recretary is the solution for you! Recretary is specially customised for secretaries to make the contact and meeting management process as easy and as error-free as possible. What’s more, Recretary is primarily optimized for use via a Command Line Interface (CLI), which means that you can use most features with just a single line of command. If you can type fast, will be able to manage your contacts and meetings much more efficiently on our sleek Graphical User Interface (GUI).

If you are new to CLI or Recretary, fret not! Explore our User Guide now to find out more on our amazing features and how they work!

1.2 Overview of the User Interface

done by: Adithya Narayan Rangarajan Sreenivasan

As you can see in in the figure below (Fig 1.1a), the user interface of the app is sleek and beautiful, but still gives you all the information that is required. The contacts are arranged in the left and the meetings are arranged in the right. All the meetings are always sorted according to time (earliest first). The meeting timeline draws your attention into the current time and the next meeting that is scheduled to take place.

To ensure maximum efficiency, we have made the app default to a full screen. The app has been made keeping full screen usage in mind.

2 Using the user guide

done by: Adithya Narayan Rangarajan Sreenivasan

This section will give you, the user, all the details required to interpret and understand the user guide and use it to your advantage. This guide encompasses all the features that the app provides with in-depth explanation on how to use them in the app with examples and illustrations.

2.1 Format

done by: Adithya Narayan Rangarajan Sreenivasan

Symbol/Formatting	Explanation
Monospaced Codeblocks (eg: example)	User input, command box output
	A tip to increase your efficiency
	Notes. An important must read before you execute a command
	Visual Walkthrough. Images to guide you through an example use of the command step by step

Notes about the command format:

• Words in UPPER_CASE are the parameters to be supplied by the user.
  e.g. in addcontact n/NAME, NAME is a parameter which can be used as addcontact n/John Doe.

• Items in square brackets are optional.
  e.g n/NAME [t/TAG] can be used as n/John Doe t/friend or as n/John Doe.

• Items with …​ after them can be used multiple times including zero times.
  e.g. [t/TAG]…​ can be used as ` ` (i.e. 0 times), t/friend, t/friend t/family etc.

• Parameters with prefixes can be in any order.
  e.g. if the command specifies INDEX n/NAME p/PHONE_NUMBER, INDEX p/PHONE_NUMBER n/NAME is also acceptable whereas p/PHONE_NUMBER INDEX n/NAME is not correct since INDEX has no prefix.

• Although it is not recommended to supply duplicate parameters, they will still be accepted. However, only the last parameter of the same type will be considered.
  e.g. if the command entered by user is editcontact 1 n/John n/Bob, only n/Bob will be considered as only the last of the two n/ parameters is considered.

2.2 Navigation

done by: Adithya Narayan Rangarajan Sreenivasan

This user guide was made taking in mind the ease of usability and navigation. You can easily click on the headings and sub-headings in the table of contents (and also other parts where a heading is mentioned) and it will take you right into the required part of the guide.

Here is a quick summary of relevant links you can take a look at if you wish to brush through the user guide.

• Get up and running as soon as possible: Quick Start
• For a summary of the features on this user guide: Command Summary
• For a summary of the prefixes of commands: Prefix Summary

3 Quick start

done by: Liu Chuyue

This section contains a step-by-step guide on how to install Recretary on your computer, as well as some basic commands for you to get familiarised with Recretary.

3.1 Installation

1. Ensure you have Java 11 or above installed in your Computer.

2. Download the latest recretary.jar from here.

3. Copy the file to the folder you want to use as the home folder for Recretary.

4. Double-click the file to start the app. The GUI similar to the below should appear in a few seconds. Note how the app contains some sample data. You can get familiar with our app by following the simple instructions below and observe the changes in your GUI. You can also just type clearcontact and clearmeeting separately to clear all data and immediately start using the app.

5. For you to get familiar with the app and to practice, type the command in the command box and press Enter to execute it. e.g. typing help and pressing Enter will open the help window. Some example commands you can try:

   • listcontact : Lists all contacts.

   • addcontact add_contact n/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01 c/ABC Holdings Pte. Ltd : Adds a contact named John Doe to the Contacts List.

   • deletemeeting1 : Deletes the 1st meeting shown in the current list.

   • clearmeeting : Deletes all meetings.

   • clearcontact : Deletes all contacts.

   • exit : Exits the app.

6. Refer to the Features below for details of each command.

4 Features

This section contains detailed information of each of Recretary’s commands, with relevant examples and images to guide you.

4.1 Contact Management

done by: Koh Zhe Hao

Storing and using contact entries in Recretary is similar to the way a phonebook stores your contacts’ phone numbers. However, Recretary improves upon traditional phonebooks by taking multiple fields of information such as name, phone number, email, address and company into consideration. There are also optional entries, company roles and tags(usually a short phrase used to describe someone), that may help you organize your contacts better. The commands listed below are various methods you can manage your contacts. You can also find your list of contact information on the left-hand-side of the window as shown in the highlighted section from the picture below.

Note: You can view all contacts by hovering your mouse at the highlighted section, and simply scrolling up or down to view more contacts in the list.

4.1.1 Adding a person: addcontact

done by: Koh Zhe Hao

The most fundamental command for contact management in Recretary. It simply allows you to add a new contact into Recreatary. A contact here represents the collection of all information from a single person.

Note: Do take note of the requirements on the fields listed below as specified by Format and Prefix Summary.

Format: addcontact n/NAME p/PHONE_NUMBER e/EMAIL a/ADDRESS c/COMPANY [r/COMPANY_ROLE]…​ [t/TAG]…​

Tip: A person can have any number of tags and company roles (including 0). In other words, these two fields are optional.

Examples:

• addcontact n/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01 c/ABC Holdings Pte. Ltd
• addcontact n/Betsy Crowe t/friend e/betsycrowe@example.com a/Newgate Mansion p/1234567 r/CEO c/DEF Company

Example Usage

addcontact n/Amanda Jo p/81234567 e/amanda@example.com a/PGP House c/Facebook t/friend

Expected result:

New person added: Amanda Jo Phone: 81234567 Email: amanda@example.com Company: Facebook Address: PGP House Tags: [friend] Company roles:  

will be shown as a feedback. The newly added contact being displayed on screen.

Example Usage Visual Walkthrough Guide:

State of the app BEFORE the command.

State of the app BEFORE the command.

4.1.2 Listing all persons: listcontact

done by: Koh Zhe Hao

One of the most basic commands that displays the list of all contacts in Recretary.

Format: listcontact

Example Usage

listcontact

Expected result:

Listed all persons

is shown as a feedback. All existing contacts will be displayed.

Note: Since this command’s behavior is very simple, the Visual Walkthrough Guide is omitted here.

Tip: - Anything following the listcontact keyword will be ignored by the application.

4.1.3 Editing a person: editcontact

done by: Zhao Huan

Ensure the validity of contacts’ data by updating personal information using the editcontact command. You can easily manage all data fields of your contacts in Recretary, no need to remove it and add again!

Format: editcontact INDEX [n/NAME] [p/PHONE] [e/EMAIL] [a/ADDRESS] [c/COMPANY] [t/TAG]… [r/COMPANY_ROLE]…

• This command edits the person at the specified INDEX. The index refers to the index number shown in the person list being displayed . The index must be a positive integer 1, 2, 3, …​
• At least one of the optional fields should be provided. Recretary may be confused if a contact remains changed after edition.
• Existing values of a contact, if any, will be updated to the input values. And all meetings the contact is participating, if any, will be updated accordingly.

Tip:
- When editing tags, the existing tags of the person will be removed i.e adding of tags is not cumulative. - You can remove all the person’s tags by typing t/ with no following tags.

Examples:

• editcontact 1 p/91234567 e/johndoe@example.com Edits the phone number and email address of the 1st person to be 91234567 and johndoe@example.com respectively.
• editcontact 2 n/Betsy Crower t/ Edits the name of the 2nd person to be Betsy Crower and clears all existing tags.

Example Usage

editcontact 1 n/Kelly Low e/kelly@example.com

Expected result:

Edited Person: Kelly Low Phone: 98764432 Email: kelly@example.com Company: ABC Holdings Pte. Ltd Address: John street, block 123, #01-01 Tags:  Company roles: 

Note: Since this command’s behavior is very similar to addcontact, the Visual Walkthrough Guide is omitted here.

4.1.4 Finding persons: findcontact

done by: Adithya Narayan Rangarajan Sreenivasan

Reduce distractions and other unnecessary contacts and information by filtering the contact list using the findcontact command. This command narrows down the list to only contacts whose names contain any of the given keywords.

Format: findcontact KEYWORD [MORE_KEYWORDS]

• The search is case-insensitive. e.g hans will match Hans
• The order of the keywords does not matter. e.g. Hans Bo will match Bo Hans
• Only the name is searched.
• Only full words will be matched e.g. Han will not match Hans
• Persons matching at least one keyword will be returned (i.e. OR search). e.g. Hans Bo will return Hans Gruber, Bo Yang

Examples:

• findcontact John returns john chan and John Doe
• findcontact bernice david returns Bernice Yu and David Li

Example Usage

findcontact abc

Expected result

1 persons listed!

Visual Walkthrough Guide: State of the app BEFORE the findcontact david command.
Fig 4.1.4a: Before execution of command
State of the app AFTER the findcontact david command.
Fig 4.1.4b: After execution of command

4.1.5 Deleting a person: deletecontact

done by: Zhao Huan

Reduce distractions and tidy up the application by removing contacts that are no longer needed using the deletecontact command. This command deletes the specified contact from the address book.

Format: deletecontact INDEX

Tip:
- Deletes the person at the specified INDEX. The INDEX has a similar behavior as the one in editcontact, i.e. an positive index of a contact from the list being displayed.

Examples:

• deletecontact 2 deletes the 2nd contact in the address book.

• findcontact Betsy followed by deletecontact 1 deletes the 1st contact in the resulting displayed list of the findcontact command.

Example Usage

deletecontact 1

Expected result

Deleted Person: Kelly Low Phone: 98765432 Email: kelly@example.com Company: ABC Holdings Pte. Ltd Address: John street, block 123, #01-01 Tags:  Company roles: 

4.1.6 Clearing all contacts: clearcontact

done by: Liu Chuyue

Clears all contacts from the address book. If you enter anything following the clearcontact keyword, e.g. clearcontact 2, the extra input will be ignored by the application.

Format: clearcontact

Example Usage

clear contact

Expected result:

Contacts have been cleared!

Remove all existing contacts from Recretary. You can now see an empty contact list.

Tip: You can undo this action with the undo function!

4.2 Meeting Management

Meeting entries in Recretary have multiple attributes: date time, duration, title and location. You can declare the recurrence of a meeting to avoid repetitive input, and you can also add contacts as participants of a meeting. All meeting information will be displayed on the right-hand-side of the window, ordered by their starting time, with a green bar indicating the next upcoming meeting. When the next upcoming meeting starts, the green bar will move to the next meeting automatically, if any.

4.2.1 Adding a meeting: addmeeting

done by: Tan Xuan Zhi

Adds a meeting into the meeting schedule.

Format: addmeeting title/TITLE d/DATETIME dur/DURATION l/LOCATION [rec/RECURRENCE]

• The format for DATETIME is d/M/yy HHmm.
  e.g. d/1/11/20 1430 e.g. d/1/1/20 1430 e.g. d/12/11/20 1430

• DATETIME cannot overlap with any of the existing meetings.

• The format for DURATION is H mm, where H and mm must be non-negative numbers and cannot both be zero.
  e.g. dur/1 30.

• The number of minutes in DURATION cannot exceed 59.

• The field RECURRENCE consists of two parts separated by /. The first part can be one of daily, weekly or monthly indicating the frequency of recurrences, and the second part is a positive integer no more than 20 to indicate the number of recurrences.
  e.g. daily/1, e.g. weekly/20, e.g. monthly/5

Example:

• addmeeting title/roundtable discussion d/31/12/20 1200 dur/00 30 l/NUS SoC
• addmeeting title/abc company meeting d/31/12/20 1400 dur/00 50 l/John street, block 123, #01-01 rec/weekly/5

Example usage:

addmeeting title/v1.5 discussion d/12/12/20 1200 dur/02 00 l/Home

Expected result:

New meeting added: v1.5 discussion Date and Time: 12 Dec 2020 12.00pm Duration: 2hrs Location: Home Recurrence: Participants: none 
Add participants with the addpart command now!

Adds a new meeting on the meeting panel on the right. The existing list of meetings is automatically sorted after the addition according to date and time.

Note: After adding a meeting, add new participants to it with the addpart command described below. Only people in your contacts can be added as participants.

4.2.2 Adding a participant into a meeting: addpart

done by: Tan Xuan Zhi

Adds a participant into a meeting.

Format: addpart ci/CONTACT_INDEX mi/MEETING_INDEX

• Add the participant at the specified CONTACT_INDEX to a meeting at the specified MEETING_INDEX. The CONTACT_INDEX and MEETING_INDEX refers to the index number shown in the currently displayed contact list and meeting list respectively.

Examples:

• addpart ci/1 mi/3 adds the first contact in the whole list to the 3rd meeting.
• findcontact alice followed by addpart ci/1 mi/2 adds the first contact of the findcontact command’s result into the 2nd meeting.

Example Usage:

addpart ci/1 mi/1

Expected result:

New participant added to meeting: NAME_OF_PARTICIPANT_ADDED

Tip: Run a findcontact command before running an addpart to narrow the contact list so that you can easily add a contact instead of scrolling through the whole list! Likewise, run a findmeeting command before running an addpart to narrow the meeting list so that you can easily add a meeting without scrolling through the whole list!

4.2.3 Delete a participant into a meeting: deletepart

done by: Tan Xuan Zhi

Deletes a participant from a meeting.

Format: deletepart ci/CONTACT_INDEX mi/MEETING_INDEX

• Delete the participant at the specified CONTACT_INDEX from a meeting at the specified MEETING_INDEX. The CONTACT_INDEX refers to the index of the participant in the meeting and MEETING_INDEX refers to the index number shown in the currently displayed meeting list.

Examples:

• deletepart ci/1 mi/3 removes the first participant from the third meeting.

Example Usage:

deletepart ci/1 mi/1

Expected result:

Participant is removed from meeting: NAME_OF_PARTICIPANT_DELETED

4.2.4 Listing all meetings: listmeeting

Shows a list of all meetings in the address book.

Format: listmeeting

• Any trailing words following the command will be ignored.

Example Usage

listmeeting

Expected result:

Listed all meetings

All existing meetings are listed.

4.2.5 Editing a meeting: editmeeting

done by: Tan Xuan Zhi

Edits an existing meeting in the meeting schedule.

Format: editmeeting INDEX [d/DATETIME] [title/TITLE] [l/LOCATION] ...

• Edits the meeting at the specified INDEX. The index refers to the index number shown in the displayed meeting list. The index must be a positive integer 1, 2, 3, …​
• The RECURRENCE field of a meeting is not modifiable
• If a recurring meeting is edited, only the meeting at the specific INDEX will be modified.
• At least one of the optional fields must be provided.
• For the optional fields that have been omitted, the values will be unchanged.

Examples:

• editmeeting 1 d/10/11/20 1400 l/clementi Edits the datetime and location of the 1st meeting to be 10/11/2020 1400 and clementi respectively.

Example Usage:

editmeeting 2 title/DEF company meeting dur/00 30

Expected Outcome:

Edited Meeting: DEF company meeting Date and Time: 12 Dec 2020 12.00pm Duration:  30mins Location: Home Recurrence: Participants: none

Change the title and duration of the second meeting in the currently displayed meeting list to DEF company meeting and 30mins respectively. Other attributes of the meeting remain unchanged.

Tip: You can add new participants to a meeting with the separate addpart command or delete existing participants in the meeting with the deletepart command.

4.2.6 Finding meetings: findmeeting

done by: Adithya Narayan Rangarajan Sreenivasan

Reduce distractions and other unnecessary contacts and information by filtering the contact list using the findcontact command. This command narrows down the list to only meetings whose data (matches title, date in all natural formats, location) contain any of the given keywords.

Format: findmeeting KEYWORD [MORE_KEYWORDS]

• The search is case-insensitive. e.g discuss will match Discuss
• The order of the keywords does not matter. e.g. Shareholder Meeting will match Meeting Shareholder
• Most fields (title, date, time and location) are searched.
• Meetings matching at least one keyword will be returned (i.e. OR search). e.g. Shareholder Meeting will return Shareholder Chat, Team Meeting
• Date is matched using natural formatting. e.g. Nov, November and 11 will match meetings that take place in november.
• Participants are not considered while matching.

Examples:

• findmeeting abc def returns abc meeting, def meeting
  

Example Usage

findmeeting abc

Expected result

1 meeting listed!

Visual Walkthrough Guide: State of the app BEFORE the findmeeting command.
Fig 4.2.6a: Before execution of command
State of the app AFTER the findmeeting v1.3 command.
Fig 4.2.6b: After execution of command

4.2.7 Deleting a meeting: deletemeeting

done by: Zhao Huan

Reduce overhead by removing outdated or cancelled meetings to get better organized using the deletemeeting command! This command deletes the specified item (and its recurrences) from the address book.

Format: deletemeeting INDEX [rec/RECURRING]

• Deletes the meeting at the specified INDEX.
• The index refers to the index number shown in the displayed list.
• The index must be a positive integer 1, 2, 3, …​
• The recurring must be either true or false. If it’s true, the meeting specified and all its recurrences will be removed.

Examples:

• deletemeeting 2 deletes the 2nd meeting in the meeting schedule.
• deletemeeting 2 rec/true deletes the 2nd meeting and all its recurrences in the address book.
• findmeeting Shareholder followed by deletemeeting 1 deletes the 1st meeting in the results of the findmeeting command.

Example Usage

deletemeeting 3

Expected result:

Deleted Meeting: Annual meeting Date and Time: 31 Dec 2020 2.00pm Duration:  50mins Location: John street, block 123, #01-01 Recurrence:  Participants: none

4.2.8 Clearing all meetings : clearmeeting

Clears all meetings from the meeting schedule. Clears all contacts from the address book. If you enter anything following the clearmeeting keyword, e.g. clearmeeting 2, the extra input will be ignored by the application.

Format: clearmeeting

Example Usage

clearmeeting

Expected result:

Meetings has been cleared!

Remove all existing meeting from Recretary. You will now see an empty meeting list.

Tip: You can undo this action with the undo function!

4.2.9 Remind meetings: remindmeeting

done by: Koh Zhe Hao

One of the advanced commands in Recretary. It searches and displays all meetings that will occur within the hours specify by the user.

Format: remindmeeting HOUR

• HOUR must be a positive integer, the range of this value is from 1 - 2147483647 (user most likely won’t have so many data to keep track of in a practical usage).

Examples:

• remindmeeting 1440 returns abc meeting , xyz meeting
  Remark: 1440 = 2(months) * 30(days) * 24(hours) which is the total hours for two months; user can use this strategy to standardize the unit of time(hours) beforehand. The example describes the situation where user wants to find all meetings that will occur within two months.

Visual Walkthrough Guide: State of the app BEFORE the remindmeeting command. State of the app AFTER the remindmeeting 1440 command.
Note: The abc company meeting get filtered out(not displayed) because it will occur in 2021 which is way more than two months.

4.2.10 Exporting meetings in .ics format : exportmeeting

done by: Liu Chuyue

Exports all meetings as an iCalendar file that can be imported into other calendar apps such as Google Calendar.

Format: exportmeeting

• If you enter anything after the command, such as exportmeeting 2, the extra input will be ignored. By default, the resulting file can be found in the data folder. Check the FAQ section to see how to change the save location.
• You can simply click to open the file to import your meeting schedule into the calendar app on your computer, or upload it on any online calendar site.

Example Usage

exportmeeting

Expected result:

Meetings have been exported as .ics!

Export all existing meetings into a .ics file that can be find in the same folder of Recretary.

4.2.11 Automatic meeting reminder

done by: Zhao Huan

Pop up a meeting reminder if the earliest meeting is about to happen so that you can avoid forgetfulness! This is an automatic task and no command is needed to activate the reminder. However, in case you are not sure about future meetings, you can always use the remindmeeting command in 4.2.9 to view upcoming meetings.

Below is an illustration of the pop-up reminder:

5 General

5.1 Viewing help : help

Shows a message explaining how to access the help page. Anything following the help keyword will be ignored by the application.

5.2 Undo : undo

done by: Adithya Narayan Rangarajan Sreenivasan

Undoes the previous command or previous n commands based on the given index.

Format: undo [INDEX]

Visual Walkthrough Guide:
1. State of the app BEFORE the deletecontact command that you entered by mistake and wish to undo.
Fig 5.2a: Before execution of command to be undone
2. State of the app AFTER the deletecontact command that you entered by mistake and wish to undo.
Fig 5.2b: After execution of command to be undone
3. State of the app AFTER the undo command.
Fig 5.2c: After execution of undo command

5.3 Command Session History

done by: Adithya Narayan Rangarajan Sreenivasan

You can easily scroll up and down through the list of previous successful commands using the UP and DOWN key on your keyboard while in the command box.

5.4 Update user preference : edituserpref

done by: Koh Zhe Hao

• Edit the value of interval(check out glossary for more information) between meetings. The interval value is stored and remain valid when user open the app next time.
• The dafault value(if user dont specify its value via this command) is 0 which means that interval is not considered.
• i/INTERVAL indicates the interval between meetings. Note that there is a range restriction similar to the remindmeeting command.
• Take note of the user feedback in the box AFTER the edituserpref i/10 command.

5.5 Viewing previous commands

Pressing the up arrow key will change the content of the input box to the previous command that was executed (if one exists). Similarly, pressing the down arrow will display the command that was executed after the current one. Press an arrow key multiple times to navigate through multiple commands.

5.6 Saving the data

Recretary data are saved in the hard disk automatically after any command that changes the data. There is no need to save manually.

5.7 Exiting the program : exit

Exits the program. Anything following the exit keyword will be ignored by the application. Format: exit

6 FAQ

done by: Liu Chuyue

Q: How do I transfer my data to another Computer?
A: To transfer your data to another Computer:

• Install the app in the other computer.
• Transfer the following files to the other computer:
  1. The data folder in the same folder as the JAR file
  2. The file named config.json
  3. The file named preferences.json
• Place these files in the same folder as the Recretary.jar file in the new computer.
• Run Recretary as normal.
• Your data should be successfully transferred over.

Q: Where is my Recretary data stored?
A: By default, a data folder will be created in the same folder as the Recretary.jar file. After running the app for the first time, you can change the file path by directly editing preferences.json, which will also be created in the same folder.

7 Command summary

8 Prefix summary

9 Glossary

done by: Liu Chuyue

• CLI: Command Line Interface. A program that accepts text input to execute system functions.
• Company Role: The position of a contact plays in their company.
• GUI: Graphic User Interface. A system of interactive visual components for computer software.
• iCalendar: A file type that allows storing and accessing calendar and sheduling information. It usually has the file extension of .ics.
• Interval: This represents the minimum time gap between meetings. It is meant to represent travelling time or resting time in between meetings.