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Postcondition(s): Access to view and edit the item values
Postcondition(s): Access to view and edit the item values

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Latest revision as of 01:39, 17 May 2012

Introduction

The Seer-ROI is a powerful tool that can be used for estimating the software development process. The tool can estimate all parts of the process such as labor, stuffing or maintenance cost. Nowadays, running a project without making ROI analyse on it is very risky for companies because of the rapidly changed economical situation of the world.

Behind the idea of using ROI software is increasing the cost/benefit efficiency. Since the common purpose of the corporates is lowering the cost and increasing the benefit of the project, ROI software is on of the most important tools that should be used before spending money and time on it. The company can lead the project according to the resulting analysis, including histograms, pie charts and gain-loss graph with the related data. A performance measure used to evaluate the efficiency of an investment or to compare the efficiency of a number of different investments. To calculate ROI, the benefit (return) of an investment is divided by the cost of the investment; the result is expressed as a percentage or a ratio.

The return on investment formula:

In the above formula "gains from investment", refers to the proceeds obtained from selling the investment of interest. Return on investment is a very popular metric because of its versatility and simplicity. That is, if an investment does not have a positive ROI, or if there are other opportunities with a higher ROI, then the investment should be not be undertaken.


Overview Of the Project and Functions of the Application

Capability 1: Load a Project

Description: The users shall be able to open a project in cost/benefit tab that is already created, or support a project externally which has an appropriate format

Priority: M

Input(s): Files which have an appropriate format (which are previously created and saved)

Source(s): Supplied by user

Output(s): The previously created items with input values

Destination(s): In the “Menu Bar”, as a sub-option for “File”

Precondition(s): A project file must be created and saved before

Postcondition(s): User will be able to see all items; cost, benefit, item values and the whole analysis of the related (opened) project


Capability 2: Defining A Year Range

Description: The users shall be able to define a year range, to display all data within those specified years

Priority: M

Input(s): Starting and ending years

Source(s): Supplied by user

Output(s): Years within the entered year range are added to the value table

Destination(s): A pop-up window will be opened when the user right clicks in anywhere on the spreadsheet within the "Cost" or "Benefit" tabs

Precondition(s): N/A

Postcondition(s): The year intervals will be displayed on the spreadsheet within the related tab


Capability 3: Adding Items

Description: The users shall be able to enter any number of items and their cost/benefit values by right clicking on the spreadsheet and choosing “Add Main Item” button. User can modify the values after adding items

Priority: M

Input(s): Names of Items, cost & benefit values (most, likely, least)

Source(s): Supplied by user

Output(s): The item and the related values will be placed on the spreadsheet

Destination(s): Main (or specific) frame

Precondition(s): Items must have logical cost and benefit values

Postcondition(s): Access to view and edit the item values


Capability 4: View Costs

Description: The users shall be able to see all the costs related to the input values in a separate tab

Priority: M

Input(s): N/A

Source(s): Supplied by application

Output(s): An area, displaying all the items and only their costs within the related year ranges, a graph displaying costs&benefit relation at the bottom of the application window

Destination(s): A tab called “Cost”

Precondition(s): Items must be created with the cost and benefit values, or a previous project must be opened to view the related cost values and the graph

Postcondition(s): Ability to view costs for each item and option for editing names or values


Capability 5: View Benefits

Description: The users shall be able to see all the benefits related to the input values

Priority: M

Input(s): N/A

Source(s): Supplied by application

Output(s): An area, displaying all the items and only their benefits within the related ranges, a graph displaying cost&benefit relation at the bottom of the application window

Destination(s): A tab called “Benefit”

Precondition(s): Items must be created with the cost and benefit values, or a previous project must be opened to view the related benefit values and the graph

Postcondition(s): Ability to view benefits for each item and option for editing names or values


Capability 6: View Analysis

Description: The users shall be able to see the analysis of all input information as the final view

Priority: M

Input(s): A newly created project with items and related values (costs, benefits, ranges etc.) or a previous project as an external source

Source(s): Supplied by user

Output(s): Two pie charts (one for displaying the costs and one for display the benefits), a relation graph including both costs and benefits overall and a histogram displaying the value analysis based on the Monte Carlo Algorithm

Destination(s): A tab called “Analysis”

Precondition(s): Items must be created with the cost and benefit values or a previous project must be opened

Postcondition(s): Able to compare the costs and benefits by those two pie charts, analyzing the histogram and the cost-benefit relation is shown


Capability 7: Editing Items In a Project

Description: The users shall be able to edit the values and also names for the items in a project

Priority: M

Input(s): New values/items

Source(s): Supplied by user

Output(s): Newly modified values (displayed on the spreadsheet)

Destination(s): Any value or name field of an item in the spreadsheet (by pressing E from the keyboard)

Precondition(s): An item with its own value must be created before or has just been created defaultly

Postcondition(s): The items or item values/names (also cost or/and benefit values) will be modified


Capability 8: Saving The Current Project

Description: The users shall be able to save a newly created or opened project

Priority: M

Input(s): N/A

Source(s): Supplied by user

Output(s): The project will be saved including all values and names within an xml file

Destination(s): May vary according to the user's desire

Precondition(s): N/A

Postcondition(s): All values, names and other properties will be stored in an xml format and can be loaded into the application for another time later