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
$94.24
Apple Inc.
+0.30
MSFT
$44.91
Microsoft Corpora
+0.08
GOOG
$597.95
Google Inc.
+8.48

MacTech Search:
Community Search:

Software Updates via MacUpdate

A Better Finder Rename 9.37 - File, phot...
A Better Finder Rename is the most complete renaming solution available on the market today. That's why, since 1996, tens of thousands of hobbyists, professionals and businesses depend on A Better... Read more
MacBook Air EFI Firmware Update 2.9 - Fo...
MacBook Air EFI Firmware Update is recommended for MacBook Air (Mid 2011) models. This update addresses an issue where systems may take longer to wake from sleep than expected and fixes a rare issue... Read more
FileZilla 3.9.0.1 - Fast and reliable FT...
FileZilla (ported from Windows) is a fast and reliable FTP client and server with lots of useful features and an intuitive interface.Version 3.9.0.1: MSW: Fix installation issue with locked DLLs... Read more
OS X Yosemite 10.10 DP4 - Developer Prev...
Note: This is a Developer Preview. You must be a registered Apple Mac Developer to download this update. OS X Yosemite is Apple's newest operating system for Mac. An elegant design that feels... Read more
FinderPop 2.5.6 - Classic Mac utility, n...
FinderPop is a Universal preference pane that extends OS X's contextual menus using a FinderPop Items folder much as the Apple Menu Items folder used to do for the Apple menu. It has other features... Read more
SpiderOak 5.1.7 - Secure cloud backup, s...
SpiderOak is a multi-platform secure online backup, storage, access, and sharing solution engineered for the consumer and small businesses. You must first sign up to use SpiderOak. Running natively... Read more
Espionage 3.6 - Simple, state of the art...
Espionage offers state-of-the-art encryption and plausible deniability for your confidential data. Sometimes, encrypting your data isn't enough to protect it. That's why Espionage 3 goes beyond data... Read more
calibre 1.45.0 - Complete e-library mana...
Calibre is a complete e-book library manager. Organize your collection, convert your books to multiple formats, and sync with all of your devices. Let Calibre be your multi-tasking digital... Read more
iFFmpeg 4.3.1 - Convert multimedia files...
iFFmpeg is a graphical front-end for FFmpeg, a command-line tool used to convert multimedia files between formats. The command line instructions can be very hard to master/understand, so iFFmpeg does... Read more
Chromium 36.0.1985.125 - Fast and stable...
Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. FreeSMUG-Free OpenSource Mac User Group build is... Read more

Latest Forum Discussions

See All

MTN Review
MTN Review By Jessica Fisher on July 22nd, 2014 Our Rating: :: ADORABLE, SERENE, AND AMUSINGUniversal App - Designed for iPhone and iPad MTN is an adorable, talking pet mountain that is less game and more zen garden.   | Read more »
Fly High with Ninja UP! Now Available o...
Fly High with Ninja UP! Now Available on the App Store Posted by Jessica Fisher on July 22nd, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Bio Inc. Review
Bio Inc. Review By Nadia Oxford on July 22nd, 2014 Our Rating: :: SICKENING - IN A COMPELLING WAYUniversal App - Designed for iPhone and iPad Bio Inc is about orchestrating the medical destruction of a single person. If that doesn’... | Read more »
HELMUT Review
HELMUT Review By Andrew Fisher on July 21st, 2014 Our Rating: :: TRUNDLE SIMULATOR 2014Universal App - Designed for iPhone and iPad HELMUT is a fun, fleeting time-sink that offers a momentary distraction and nothing else.   | Read more »
Walkr Review
Walkr Review By Jennifer Allen on July 21st, 2014 Our Rating: :: ORIGINAL WALKINGiPhone App - Designed for the iPhone, compatible with the iPad Walking is a bit more exciting thanks to this planet building/discovering sim reliant... | Read more »
Zombie Commando Review
Zombie Commando Review By Jennifer Allen on July 21st, 2014 Our Rating: :: MINDLESS SLAUGHTERUniversal App - Designed for iPhone and iPad Briefly fun but ultimately forgettable, Zombie Commando will scratch an itch then be... | Read more »
Swords & Poker Adventures Review
Swords & Poker Adventures Review By Jennifer Allen on July 21st, 2014 Our Rating: :: SOULLESS POKER PLAYUniversal App - Designed for iPhone and iPad Swords & Poker Adventures is a mishmash of Poker and RPGing, but it lacks... | Read more »
Warhammer 40,000: The Horus Heresy: Drop...
Warhammer 40,000: The Horus Heresy: Drop Assault Coming Soon to iOS Posted by Jennifer Allen on July 21st, 2014 [ permalink ] Coming soon to iOS will be an all-new Warhammer 40,000 tactical strategy game by the name of The Horus Heresy: Drop As | Read more »
A Life Worth Dying For Review
A Life Worth Dying For Review By Jordan Minor on July 21st, 2014 Our Rating: :: A BEAUTIFUL MINDUniversal App - Designed for iPhone and iPad A Life Worth Dying For is a fascinating portrait of a serious subject.   | Read more »
Zombie Puzzle Panic Review
Zombie Puzzle Panic Review By Jordan Minor on July 21st, 2014 Our Rating: :: THE MATCHING DEADUniversal App - Designed for iPhone and iPad Zombie Puzzle Panic puts some pretty neat undead twists on Match-3 puzzling.   | Read more »

Price Scanner via MacPrices.net

Twelve South HiRise For MacBook – Height-Adju...
If you use your MacBook as a workhorse desktop substitute, as many of us do, a laptop stand combined with an external keyboard and pointing device are pretty much obligatory if you want to avoid... Read more
Why The Mac Was Not Included In The Apple/IBM...
TUAW’s Yoni Heisler cites Fredrick Paul of Network World whoi blogged last week that the Mac’s conspicuous absence from Apple and IBM’s landmark partnership agreement represents a huge squandered... Read more
Save $100 on 13-inch Retina MacBook Pros, plu...
Adorama has 13″ Retina MacBook Pros on sale for $100 off MSRP. Shipping is free, and Adorama charges sales tax in NY & NJ only: - 13″ 2.4GHz/128GB MacBook Pro with Retina Display: $1199 - 13″ 2.... Read more
Blurr it 2.3 for iOS – Quickly Blurs Selected...
Hyderabad, India based TouchLabs has announced a new update of Blurr it 2.3, their photography app for iOS users. Blurr it allows you to blur part of the image to hide potentially sensitive or... Read more
MacBook Airs on sale for $100 off MSRP, start...
Best Buy has the new 2014 MacBook Airs on sale for up to $100 off MSRP on their online store. Choose free home shipping or free local store pickup (if available). Prices valid for online orders only... Read more
Amazon Announces Kindle Unlimited: Unlimited...
Amazon.com has introduced Kindle Unlimited — a new subscription service which allows customers to freely read as much as they want from over 600,000 Kindle books, and listen as much as they want to... Read more
New Linksys Wireless Range Extenders Boost Wi...
Linksys has announced its new lineup of Linksys Wi-Fi Range Extenders. Consumers often experience a weak wireless signal in some parts of their house or apartment caused by blocking elements such as... Read more
MacBook Airs available starting at $719
The Apple Store has Apple Certified Refurbished 2013 & 2012 MacBook Airs in stock today starting at $719. An Apple one-year warranty is included with each MacBook, and shipping is free: 2013... Read more
Get the best deals on iPad minis with Apple r...
The Apple Store has Certified Refurbished 2nd generation iPad minis with Retina Displays available for up to $130 off the cost of new models, starting at $339. Apple’s one-year warranty is included... Read more
Best Buy’s College Student Deals: $100 off Ma...
Take an additional $100 off all MacBooks and iMacs, $50 off iPad Airs and iPad minis, at Best Buy Online with their College Students Deals Savings, valid through July 25th. Anyone with a valid .EDU... Read more

Jobs Board

*Apple* Computer Technician - Fairfield Coun...
Company DescriptionWe are an Apple Authorized Sales and Service Provider. We have been selling and servicing Apple computers in the Fairfield County area for over 20 Read more
*Apple* Computer Technician - Fairfield Coun...
Company DescriptionWe are an Apple Authorized Sales and Service Provider. We have been selling and servicing Apple computers in the Fairfield County area for over 20 Read more
Mac Expert - *Apple* Online Store Mexico -...
…MUST be fluent in English and Spanish to be considered for this position At Apple , we believe that hard work, a fun environment, creativity and innovation fuel the Read more
*Apple* Computer Technician - Fairfield Coun...
Company DescriptionWe are an Apple Authorized Sales and Service Provider. We have been selling and servicing Apple computers in the Fairfield County area for over 20 Read more
Mac Expert - *Apple* Online Store - Apple (...
**Job Summary** At Apple , we believe that hard work, a fun environment, creativity and innovation fuel the ultimate customer experience. We believe each customer Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.