TweetFollow Us on Twitter

May 93 - A CASE tool for OOA, OOD and OOP

ObjectModeler™
A CASE tool for OOA, OOD and OOP

Doug Rosenberg

ObjectModeler is an application which is useful for Object Oriented Analysis, Design, and Programming. There are 3 main areas of functionality within the program:

a GRAPHICS EDITOR which provides drawing palettes for-

  • Coad/Yourdon OOA diagrams
  • Rumbaugh OMT (Object Modeling Technique) diagrams
  • Booch Class diagrams
  • Booch Object diagrams

a DICTIONARY which provides-

  • a convenient place to capture additional detail beyond what is shown on the diagrams
  • a mechanism for sharing a model across a developmentteam on a fileserver
  • global change capability across a network
  • access controls and collision detection
  • integration with other ICONIX PowerTools™ modules

a TEXT EDITOR which provides-

  • linkage between source code and diagram elements
  • language templates on pull-down menus for
    • C++
    • Lisp
    • SQL
    • Pascal
    • PDL (ICONIX PowerPDL™ pseudocode language)

ObjectModeler can help to bring order and discipline to the often ad-hoc and chaotic process of developing O-O software without being overly rigid and stifling programmer creativity. Using ObjectModeler in conjunction with other ICONIX modules which support State Transition Diagrams, Module Architecture Diagrams and other techniques (e.g. PDL) makes it even more useful.

Object Oriented Analysis

The primary reason for not skipping the analysis phase of a software project is to ensure that the system under construction will properly meet the requirements of the customers or end-users. In other words, are we building the right system?

OOA methods tend to model the real world, often using notations that display classes or objects within the same symbol as their attributes (fields) and services or operations (methods). Other common themes across OOA methods are the kind-of and part-of relationships between classes.

These concepts lead to models of the objects, classes, and inheritance relationships in the problem domain which are readily understood by the end-users as well as the developers. These models are used to facilitate communication and lead to a common understanding of a system under development which is shared by all members of the development team as well as the end users.

ObjectModeler supports two methodologies which share these common themes; Coad/Yourdon OOA and Rumbaugh OMT. Each of these methodologies has its own set of strengths. Coad and Yourdon provide an easily understood notation for describing class hierarchies and address large system concerns with a 5-layer model which supports decomposition along Subject boundaries. Rumbaugh provides a rigorous approach based on Entity-Relationship modeling, extensive treatment of how to produce SQL from Class diagrams, and also includes State Machines and Data Flow diagrams as supplementary descriptions of object behavior and functionality; the ICONIX FastTask™ and FreeFlow™ modules support these representations.

Object Oriented Design

The primary reason for not skipping the design phase of a software project is to ensure that the system under construction is properly designed; that is, that the class hierarchy is appropriate, that the code is well modularized, and that the design will effectively meet performance constraints. In other words, are we building the system right?

ObjectModeler supports the Booch Object Oriented Design methodology. Booch is widely regarded as having the most comprehensive notation for OOD; his method consists of two primary kinds of diagrams, Class Diagrams and Object Diagrams. Booch also uses State Transition and Module Architecture diagrams in his OOD methodology; the ICONIX FastTask™ and AdaFlow™ modules support these representations.

Class Diagrams show the relationship between classes in a system, focusing on different kinds of inheritance and instantiation relationships. In Booch's words, they are used to answer the question "What classes exist and how are they related?"

Object Diagrams show objects and relationships between objects, focusing on visibility (how objects see each other) and message synchronization (how objects interact with each other). In Booch's words, they are used to answer the question "What mechanisms are used to regulate how objects collaborate?".

Booch proposes a set of templates for specifying details about classes, objects, messages and other design elements. These templates are available in ObjectModeler's Language Sensitive Editor as templates which can be picked off a menu and dropped into a text file that is linked to symbols on the diagrams.

name: Temp Control Display
documentation: <text>
visibility: <exported/private/imported>
cardinality: <0/1/n>
heirarchy:
    superclasses: Displays
    metaclass: <class_name>
generic parameters:  <list_of_parameters>
interface | implementation
(public/protected/private):
    uses: <list_of_class_names>
    fields: <list_of_field_declarations>
    operations: <list_of_operation_declarations>
finite state machine:  <state_transition_diagram>
concurrency: <sequential/blocking/active>
space complexity: <text>
persistence: <persistent/transitory>

Figure 6 - A Booch Class template. Booch defines an extensive set of templates which specify a variety of detailed information about system design elements.

ObjectModeler also supports the development of pseudocode (PDL) linked to symbols on diagrams. PDL may be used at any time during analysis or design when an algorithmic specification is called for. The ICONIX PowerPDL™ module may be used to collect PDL fragments created with ObjectModeler and format them into a design document, complete with a Table of Contents and several useful Cross References.

IF the steering wheel is rotated by more than 45 degrees THEN
    send a "turn complete" message to the turn indicator
ENDIF

Figure 7 - The ICONIX PowerPDL™ module can collect PDL fragments into complete documents with a Table of Contents and extensive Cross References.

Team Project Considerations ObjectModeler's dictionary provides a convenient place to store additional information about symbols on analysis or design diagrams. Items are automatically added to the dictionary as they are named, and can be accessed from the graphics editor by option-double-clicking on a named symbol. Each different type of symbol has its own set of attributes available on a pull-down menu.

ObjectModeler supports server-based development for project teams. Data is copied from the server into local RAM on program start-up; during editing operations, the server is polled periodically (at user-specified time intervals) and any changes are downloaded, minimizing network traffic while providing excellent performance and real-time updates. Each dictionary entry has a complete set of Access Privileges which control who gets to view, edit, rename, and delete it. Judicious use of these access controls allows a project team to provide an appropriate level of protection for design elements which are common within a subsystem or across subsystems.

The dictionary may be viewed as a scrolling list. The list can be scrolled or users can type the first few characters of an entry's name to access it. The dictionary provides several powerful functions which are useful in real-world project situations, including Global Rename and Delete (which affect all diagrams on the network), and cross referencing options to tell where entries are used and what they contain.

Object Oriented Programming

Once you have determined that you are building the right system and that you are designing the system right using ObjectModeler's OOA and OOD capabilities, it's time to implement, probably in some OOP language (perhaps C++).

ObjectModeler provides templates for a variety of languages (including C++, Lisp, and SQL) on pull-down menus. Code files may be accessed from diagrams by shift-double-clicking on a named symbol. The language templates may be used to eliminate a variety of syntax errors including keyword spelling and punctuation errors, and to provide a consistent code formatting style across an entire development team.

class TAudio_Display {
    public:
       TAudioDisplay(int volume);
       TAudioDisplay(int volume,
                     int bass,
                     int treble);  // overload
       virtual ~TAudioDisplay();
          
    protected:
       virtual void SetVolume();
       virtual void SetTone();
    
    private:
       int fVolume;
       int fBass;    
       int fTreble;
};

class RadioDisplay : TAudio_Display {
    public:
       TRadioDisplay(int volume
                     int frequency
                     int station);
       virtual ~TRadioDisplay();
          
    protected:
       virtual void SetFrequency();
       virtual void SetStation();
    
    private:
       int fFrequency;
       int fStation;
};

Figure 11 - ObjectModeler's Language Sensitive Editor is used to build source code directly linked to CASE model.

Coding may be carried through to completion within ObjectModeler or transitioned at any time to any back-end environment, at the user's option. All ObjectModeler code files are stored as flat ASCII text and may be transported to host platforms or other environments with ease. If Module Architecture Diagrams are used, an identical editor is available in the ICONIX AdaFlow module.

Summary

Requirements analysis is useful because it gives us an opportunity to determine whether we are in fact building the right system. Software design is useful because it gives us an opportunity to determine whether we are building the system right. While it is possible to achieve success without going through formal analysis and design activities, the chances of success are clearly maximized by taking the time to think about these issues. OOA and OOD methodologists have developed analysis and design methods which encapsulate useful experience gained across hundreds of O-O software projects. They have developed notations which represent O-O constructs and they have written books which ask the right questions about software under development.

ObjectModeler packages up three popular O-O methodologies into a tool which addresses team project concerns and multiple lifecycle phases (analysis, design, coding) in a reliable, cost-effective, and easy-to-use manner. ICONIX provides other tools which complement ObjectModeler with techniques like State Transition Diagrams, Module Architecture Diagrams, and PDL, in a synergistic manner. When conscientiously applied, the use of CASE methods and tools leads to successful projects; clean, well-designed programs delivered on-schedule and within budget.

For further information on ObjectModeler, other ICONIX PowerTools™ modules, or training in O-O methods, please contact us at:

ICONIX Software Engineering, Inc.
2800 28th Street, Suite 320
Santa Monica, CA 90405

Phone (310) 458-0092
FAX (310) 396-3454
Applelink: ICONIX
Internet: ICONIX@applelink.apple.com

 
AAPL
$102.50
Apple Inc.
+0.25
MSFT
$45.43
Microsoft Corpora
+0.55
GOOG
$571.60
Google Inc.
+2.40

MacTech Search:
Community Search:

Software Updates via MacUpdate

VueScan 9.4.41 - Scanner software with a...
VueScan is a scanning program that works with most high-quality flatbed and film scanners to produce scans that have excellent color fidelity and color balance. VueScan is easy to use, and has... Read more
Cloud 3.0.0 - File sharing from your men...
Cloud is simple file sharing for the Mac. Drag a file from your Mac to the CloudApp icon in the menubar and we take care of the rest. A link to the file will automatically be copied to your clipboard... Read more
LibreOffice 4.3.1.2 - Free Open Source o...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more
SlingPlayer Plugin 3.3.20.505 - Browser...
SlingPlayer is the screen interface software that works hand-in-hand with the hardware inside the Slingbox to make your TV viewing experience just like that at home. It features an array of... Read more
Get Lyrical 3.8 - Auto-magically adds ly...
Get Lyrical auto-magically add lyrics to songs in iTunes. You can choose either a selection of tracks, or the current track. Or turn on "Active Tagging" to get lyrics for songs as you play them.... Read more
Viber 4.2.2 - Send messages and make cal...
Viber lets you send free messages and make free calls to other Viber users, on any device and network, in any country! Viber syncs your contacts, messages and call history with your mobile device,... Read more
Cocktail 7.6 - General maintenance and o...
Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
LaunchBar 6.1 - Powerful file/URL/email...
LaunchBar is an award-winning productivity utility that offers an amazingly intuitive and efficient way to search and access any kind of information stored on your computer or on the Web. It provides... Read more
Maya 2015 - Professional 3D modeling and...
Maya is an award-winning software and powerful, integrated 3D modeling, animation, visual effects, and rendering solution. Because Maya is based on an open architecture, all your work can be scripted... Read more
BBEdit 10.5.12 - Powerful text and HTML...
BBEdit is the leading professional HTML and text editor for the Mac. Specifically crafted in response to the needs of Web authors and software developers, this award-winning product provides a... Read more

Latest Forum Discussions

See All

Qube Kingdom – Tips, Tricks, Strategies,...
Qube Kingdom is a tower defense game from DeNA. You rally your troops – magicians, archers, knights, barbarians, and others – and fight against an evil menace looking to dominate your kingdom of tiny squares. Planning a war isn’t easy, so here are a... | Read more »
Qube Kingdom Review
Qube Kingdom Review By Nadia Oxford on August 29th, 2014 Our Rating: :: KIND OF A SQUARE KINGDOMUniversal App - Designed for iPhone and iPad Qube Kingdom has cute visuals, but it’s a pretty basic tower defense game at heart.   | Read more »
Fire in the Hole Review
Fire in the Hole Review By Rob Thomas on August 29th, 2014 Our Rating: :: WALK THE PLANKUniversal App - Designed for iPhone and iPad Seafoam’s Fire in the Hole looks like a bright, 8-bit throwback, but there’s not enough booty to... | Read more »
Alien Creeps TD is Now Available Worldwi...
Alien Creeps TD is Now Available Worldwide Posted by Ellis Spice on August 29th, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Dodo Master Review
Dodo Master Review By Jordan Minor on August 29th, 2014 Our Rating: :: NEST EGGiPad Only App - Designed for the iPad Dodo Master is tough but fair, and that’s what makes it a joy to play.   | Read more »
Motorsport Manager Review
Motorsport Manager Review By Lee Hamlet on August 29th, 2014 Our Rating: :: MARVELOUS MANAGEMENTUniversal App - Designed for iPhone and iPad Despite its depth and sense of tactical freedom, Motorsport Manager is one of the most... | Read more »
Motorsport Manager – Beginner Tips, Tric...
The world of Motorsport management can be an unforgiving and merciless one, so to help with some of the stress that comes with running a successful race team, here are a few hints and tips to leave your opponents in the dust. | Read more »
CalPal Update Brings the App to 2.0, Add...
CalPal Update Brings the App to 2.0, Adds Lots of New Stuff Posted by Ellis Spice on August 29th, 2014 [ permalink ] | Read more »
Baseball Battle Review
Baseball Battle Review By Jennifer Allen on August 29th, 2014 Our Rating: :: SIMPLE HITTINGUniversal App - Designed for iPhone and iPad Simple and cute, Baseball Battle is a fairly fun baseball game for those looking for something... | Read more »
Checkmark 2.1 Update Released, and it’s...
Checkmark 2.1 Update Released, and it’s on Sale for a Limited Time Posted by Jessica Fisher on August 29th, 2014 [ permalink ] | Read more »

Price Scanner via MacPrices.net

Labor Day Weekend MacBook Pro sale; 15-inch m...
B&H Photo has the new 2014 15″ Retina MacBook Pros on sale for up to $125 off MSRP. Shipping is free, and B&H charges NY sales tax only. They’ll also include free copies of Parallels Desktop... Read more
Labor Day Weekend iPad mini sale; $50 to $100...
Best Buy has the iPad mini with Retina Display (WiFi models) on sale for $50 off MSRP on their online store for Labor Day Weekend. Choose free shipping or free local store pick up. Price is for... Read more
13-inch 1.4GHz MacBook Air on sale for $899,...
Adorama has the new 2014 13″ 1.4GHz/128GB MacBook Air on sale for $899.99 including free shipping plus NY & NJ tax only. Their price is $100 off MSRP. Read more
It’s Official: Apple Issues Invitations To Se...
Apple has issued one of its characteristically cryptic press invitations for a special event to be held at the Flint Center for the Performing Arts in hometown Cupertino on Sept. 9, 2014 at 10:00 am... Read more
Tablet Shipments To See First On-year Decline...
TrendForce analyst Caroline Chen notes that when the iPad launched in 2010, it was an instant hit and spurred a tablet PC revolution, with tablets so popular that that notebook PC sales stagnated and... Read more
SOBERLINK Releases Apple iOS Compatible Handh...
Cypress, California based SOBERLINK, Inc., creator of the first handheld Breathalyzer designed to improve recovery outcomes, continues to show prominence in the mobile alcohol monitoring space with... Read more
New 21″ 1.4GHz iMac on sale again for $999, s...
Best Buy has the new 21″ 1.4GHz iMac on sale for $999.99 on their online store. Their price is $100 off MSRP. Choose free shipping or free local store pick up. Price is for online orders only, in-... Read more
Smartphone Outlook Remains Strong for 2014, U...
According to a new mobile phone forecast from the International Data Corporation (IDC) Worldwide Quarterly Mobile Phone Tracker, more than 1.25 billion smartphones will be shipped worldwide in 2014,... Read more
Save up to $60 with Apple refurbished iPod to...
The Apple Store has Apple Certified Refurbished 5th generation iPod touches available starting at $149. Apple’s one-year warranty is included with each model, and shipping is free. Many, but not all... Read more
12-Inch MacBook Air Coming in 4Q14 or 2015 –...
Digitimes’ Aaron Lee and Joseph Tsai report that according to Taiwan-based upstream supply chain insiders, Apple plans to launch a thinner MacBook model either at year end 2014 or in 2015, and that... Read more

Jobs Board

*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Senior Event Manager, *Apple* Retail Market...
…This senior level position is responsible for leading and imagining the Apple Retail Team's global event strategy. Delivering an overarching brand story; in-store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.