REQUIREMENTS

09 May 2018

Logo

Once we have established our team up and running, the next procedure is to set up goals. The goals with respect to the Android app was to ask our customer (Dr. Sandro Schulze). For this, we arranged our first official meeting and noted down his requirements.

Andriod Developement (1)

There are five phases of Requirements Analysis

Phase one : Reqirements Elicitation

Essential Requirements

Necessary Requirements

Desirable Requirements

Phase two : Requirements Formulation

Android Formulation (2)

To understand the requirements of our customer, the team arranged and met at regular intervals. We analysed the requirements and made calculations to followup. Time constraint - ability to complete and submit the app to our customer within the agreed time was our first priority. Feasibility with respect to application features and the team’s skillset was also taken into consideration. We made sure that we were properly equipped to complete the app.

Phase three : Requirements Analysis

Requirements are part of the developer perspective. However, User stories are part of the end user perspective. A typical User story denotes why an User would download/use the app for.

User stories

Use Case Diagram

Use Case Diagram

The above figure denotes a typical use case diagram. When an user ‘adds a new activity’, the ‘include’ command is invoked which takes into consideration another interdependant activity ‘add activity details’. Similarly if an user ‘reviews the data’, the ‘extend’ is invoked which means its not necessary that the user ‘shares the data’.

Phase four : Requirements Validation

Android Validation (3)

To validate the application requirements, we created a rough outline of the various requirements. Next we downloaded other similar mobile applications that served the same purpose. Then we compared our requirements to the facilities provided by other apps. This helped us to understand the practical way to follow. This also gave us a realistic approach.

Phase five : Requirements Management

Android Management (4)

This blog and this page in particular would serve as the documentation of the various requirement stages of our mobile application.

Wrong Assumptions

As with every story, our requirement phases too suffered from misconceptions. Our customer’s requests were wrongly understood by us and below are some of the few -

Requirement levels -

First major hurdle that we had to overcome was understanding the different requirements and where they would fit. There were few requirements that confused us with categorizing it under Essential or Necessary or Desirable levels.

Requirements versus User stories -

Next point to be understood was the different perspectives related to the application. Requirements were from a developer perspective and they had to be gathered and analysed as such, whereas User stories were from a basic user perspective.

Calendar feature -

We requested our customer if a calendar facility could be appended within the app. A calender with day-to-day summary would give the user an option to add events. However, our customer cleared us on the concept that adding a calendar option would rob the approach of a activity monitoring app and diverse the intention of the app towards an event managing application.


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