experience this . . . counting an apple iphone application

ISMA 7

©2010 David Consulting Group

Experience This . . . Counting an Apple IPhone Application

The David Consulting Group

Tom Cagley, CFPS VP of Consulting

Toni Ramos, CFPS

Consultant

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Mobile Apps: Client Server or Something Else?

An example: Count an IPhone Application and compare it to a general client server application. Potential Issues:

• Documentation • Boundaries • Data • Transactions

Thanks to EXP for Mobile App Experience Tremont

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Mobile Apps: Client Server or Something Else?

Mobile App • Multiple Layers

• Device • Administration • Cloud

Client Server • Multiple Layers

• Client Layer • Middle Tier Layer • Server Layer

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Documentation

Client Server • User Guides • ERD • High Level Design

Mobile App • App Download • ERD • Wireframes

Differences in how the work is done (SDLC) and

vocabulary can also result in variations of the documentation.

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Boundaries: Client Server

• The application or part of the application enclosed by the boundary must be a coherent body of functionality

• Persistent storage is not considered a user of the software and is therefore on the software side of the boundary

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Boundary: Mobile App

Cloud Data Mobile Devices Administration and Data Entry

• Does the introduction of a mobile device change the definition of where the boundary resides?

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Data: Client Server

• Data can be held and maintained in multiple instantiations in any of the layers.

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Data: Mobile App

The Cloud • Data can also be held and maintained in multiple

instantiations Mobile Device • Some mobile devices hold a local copy which is

refreshed once connected. • Some devices can only access when connected

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Transactions: Client Server

Business enter the application from the client and engages the logic and data layers (technically cohesive).

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Transactions: Mobile App

Front End utilizing mobile device The client or app leverages the data from the cloud or from a local copy. Different devices may have unique look and feel, but the transactions are all still the same.

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Transaction Name

Function Type FTRs DETs

Display Organization List EQ 1 2

Display Organization Details

EQ 1 9

Call Location EQ 1 1

Map this Location EQ 1 5

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Transaction Name


Website

Not Counted

Events at this Location EQ 1 4

Check In at this Location EQ 1 4

Email to a Friend EQ 1 5

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Transaction Name


View Today’s Events

EO 2 5

View Upcoming Events EQ 1 4

View Event Details EQ 1 6

Other Events at this location

Not Counted

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Back End leveraging a WEB / Client Server interface • Has several variation of user roles

• For this application is the single point of data entry

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Maintain an Organization

Transaction

Name Function

Type FTRs DETs

View Organization

EQ 1 13

Create Organization EI 1 13

Edit Organization EI 1 13

Delete Organization EI 1 13

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Maintain an Event

Transaction

Name Function

Type FTRs DETs

View Event EQ 1 6

Create Event EI 1 6

Edit Event EI 1 6

Delete Event EI 1 6

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Maintain a User


Transaction Name


View User EQ 1 4

Create User EI 1 6

Edit User EI 1 4

Change Password EI 1 4

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GSC

Client Server Mobile App

System Characteristics Score 01. Data Communications 4 02. Distributed Data Processing 3

03. Performance 2

04. Heavily Used Configuration 0 05. Transaction Rate 2 06. On-line Data Entry 5 07. End-User Efficiency 2 08. On-line Update 3 09. Complex Processing 1 10. Reusability 1 11. Installation Ease 0 12. Operational Ease 1 13. Multiple Sites 0 14. Facilitate Change 0

Total Degrees of Influence (TDI): 24 (See ReadMe) Value Adjustment Factor (VAF): 0.89

System Characteristics Score 01. Data Communications 2 02. Distributed Data Processing 1

03. Performance 1

04. Heavily Used Configuration 3 05. Transaction Rate 3 06. On-line Data Entry 5 07. End-User Efficiency 3 08. On-line Update 4 09. Complex Processing 3 10. Reusability 1 11. Installation Ease 2 12. Operational Ease 2 13. Multiple Sites 0 14. Facilitate Change 4

Total Degrees of Influence (TDI): 34 (See ReadMe) Value Adjustment Factor (VAF): 0.99

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Conclusion and Final Comparison

• Mobile App or Client Server . . . • No real counting difference • Mobile Apps are a type of client server

• Tips

• Carefully draw your boundaries • Understand differences in vocabulary.

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Questions . . .

Tom Cagley, CFPS VP of Consulting The David Consulting Group [email protected] (440) 668-5717 Toni Ramos, CFPS The David Consulting Group [email protected] (719) 582-2002

mailto:[email protected]

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experience this . . . counting an apple iphone application

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