Readings (Top)

1. Read the following in the Documenting Software Architectures text:
   • Chapter 5: The Allocation ViewType and Styles
   • Chapter 6: Advanced Topics

   These readings are related to the topics that will be covered in the fourth class.

2. Read the attached article titled Smart Architectures, Architects by Matt Carter.

Problems (Top)

1. Do Discussion Question 4 from Chapter 3 in the Documenting Software Architectures text.

2. Do Discussion Questions 5 and 6 from Chapter 3 in the Documenting Software Architectures text.

3. Do Discussion Question 1 from Chapter 4 in the Documenting Software Architectures text.

4. Do Discussion Question 4 from Chapter 4 in the Documenting Software Architectures text.

5. Recall that the generic form of the delegation event pattern is:

   Event: Client Requests Service
   Message Stimulus:	Receive request from client.
   Update Response:	Add client request with pending state.
   Message Response:	Send service request to vendor.

   Event: Vendor Performs Service
   Message Stimulus:	Receive service from vendor.
   Update Response:	Modify client request to delivered state.
   Message Response:	Send service to client.

   1. What type of readily available technology could be used to manually deliver the service response to the client?

   2. What type of readily available automated technology could be used to deliver the service response to the client?

6. Suppose that we have already developed or purchased the following connectors and components that can be used to process lines of text:
   • Connectors
     • Line Reader
       Allows lines of data to be pulled from a text file through a file input port.

     • Line Writer
       Allows lines of data to be written to a text file though a line output port.

     • Line Pipe
       Allows lines of data to be transmitted from a line output port to a file output port.

   • Components
     • Line File Reader
       Ports: One file input port and one line output port.
       Process: Reads lines from the file input port and puts them into the file output port.

     • Line File Writer
       Ports: One line input port and one file output port.
       Process: Gets lines from the line input port and writes then to the file output port.

     • Line Sorter
       Ports: One line input port, one line output port, and one file input port.
       Process: Gets lines from the line input port, sorts the lines based on sort key definitions read from the file input port, and puts the sorted lines to the line output port.

     • Line Merger
       Ports: Up to five line input ports, one line output port, and one file input port.
       Preconditions: The lines that arrive at a line input port must already be sorted in order.
       Process: Gets lines from the collection of line input ports, merges the lines based on sort key definitions read from the file input port, and puts the merged (and sorted) lines to the line output port.

     Now, consider the following requirements:

     One file contains names, one name per line, in lastName, firstName format. Another file contains names, one name per line, in firstName lastName format. There is no guarantee that the names in either file are sorted. An application is needed that can read the two files and produce a single file of names in lastName, firstName format in alphabetical order by last name and first name within sets of identical last names. The solution must minimize the need to develop custom components.

     Sketch an architecture for this application. Your sketch should clearly distinguish between custom components and already realized components. Document the responsibilities of any custom components that must be developed. Be sure you can demonstrate that your architecture meets the stated requirements.

Graded Problems (Top)

The following graded problems that are related to the Nirvana Business and License Tax System are due at the start of the next class:

1. (10 pts) Analyze the main events in the Renew License use case and make decisions with regard to system interfaces, the automation boundary, and the processing cycles and types. You may ignore the exception event. You can outline your decisions in the same way that they were outlined under the System Architecture section in the Nirvana Grant License Example or you can use the attached Event Analysis/Design Froms.

2. (10 pts) Based on your analysis in the previous problem, list the practical events for the Renew License use case. Each event should include the title, the stimulus, and all of the responses. Separate these events into those that must be processed by a component in the manual partition and those that must be processed by a component in the automated partition.