Better Software - March 2008 - (Page 41)

Table 1: Requirements composition table We frequently find these concerns scattered across the application and tangled with core features. Hence, defining these concerns as a separate category of requirements (i.e., crosscutting concerns) can help us better structure requirements and achieve better traceability to functional tests. As a result of this step, we decomposed the application functionality by modules and types of requirements as shown in figure 1. vation—has a goal to modify an existing reservation • UC.01.03 Cancel Guest Reservation—has a goal to cancel an existing reservation • UC.01.04 Check In Guest—has a goal to check in a guest • UC.01.05 Check Out Guest—has a goal to check out a guest • UC.01.06 Post Charges to Guest’s Folio—has a goal to post new charges to a guest’s folio • UC.01.07 View, Update Folio Charges—has a goal to view or update the folio charges • UC.01.08 Create Message for Guest—has a goal to create messages for a guest • UC.01.09 View, Cancel Message for Guest—has a goal to view or cancel existing messages • UC.01.10 Add Travel Agency Commissions—has a goal to add commissions for a travel agency when a reservation was created via the travel agency • UC.01.11 View, Update Travel www.StickyMinds.com Agency Commissions—has a goal to view or update existing travel agency commissions • UC.01.12 Manage Rooming List —has a goal to create, view, or update a rooming list allocated to a group reservation Use cases are not supposed to capture all details of system functionality. Many other details will be captured by crosscutting concerns that we discuss in step 3. We already noted that core features are commonly specified by use cases that achieve particular business goals for the end-user. To identify use cases, we take one module at a time and compile a list of goals that the user can accomplish when working with this module. Below is the list of use cases that we identified for the 01. Front Desk module: • UC.01.01 Create Guest Reservation—has a goal to create a new guest reservation • UC.01.02 Update Guest Reser- In general, crosscutting concerns can represent functional and non-functional requirements. However, in this article we focus our discussion only on functional crosscutting concerns. Identification of crosscutting concerns means analyzing the application functionality to find some categories of requirements that are scattered across the application and tangled with the context of various use cases. We perform this step based MARCH 2008 BETTER SOFTWARE 41 http://www.StickyMinds.com

Table of Contents Feed for the Digital Edition of Better Software - March 2008

Better Software - March 2008 Contents Mark Your Calendar Contributors eLightenment Technically Speaking Code Craft Test Connection Management Chronicles Cover Story: Breaking Ground On SOA Software Development Worst Practices Mind the Gap Product Announcements 10 Things You Might Not Know About... The Last Word Ad Index

Better Software - March 2008

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