Yes, obviously its a CMS, among some other popular Web control management systems like Drupal and Joomla.
It is designed to simplify the publication of web content to web sites and mobile devices — in particular, allowing content creators to create, submit and manage contents without requiring technical knowledge of any Web Programming Languages or Markup Languages such as HTML or the uploading of files.
Kudos to Matt Mullenweg’s Wordpress, a mojority of people across the globe have been facilitated by rich means to develop their small-scale sites with ease. And thats the point of a CMS.

NOTE: This answer was originally posted at StackOverflow.com by Kunal Vyas

I would say Wordpress was originally built as a blogging platform but the underlying architecture made it possible for people to use it as a CMS. Initially, when we started we only used wordpress as a blog but now we are using it as following:

• Blog
• Real Estate Site
• Magazine Layout
• Ecommerce Store
• Coupon Site

And lots of other different needs. Wordpress XML RPC made it easier for us to push data back and forth while creating any PHP application. All the other Mambo Jambos are too complex and only serve as a CMS where in Wordpress you can do a lot.

NOTE: This answer was originally posted at StackOverflow.com by Katie

Sure, WordPress is a CMS for definition, from last release it has:

• A very flexible system for taxonomies
• Feature for create new types of Post
• Wide community of developers , and plugins that extends its base functionality

But i think that its use should be as publishing system / editorial system , first for its plugins system based on filters/action hooks that are great for little change but very tedious for develop large component , then for example not support a linear template system for backend , also manage forms and data input in the page should be rivisited.
This is only my opinion.

NOTE: This answer was originally posted at StackOverflow.com by Emiliano M.

This took me very little time.. Most of the work in converting asp
forms into php and tweaking a theme to fit their design.

That is: your expertise (distinct from capabilities of a system).

create/manage pages/posts.

That is: an expression of the extent of your client’s use of the system.

I don’t use WordPress but from Google I see that it describes itself as a

Blog Tool and Publishing Platform

and that does seem to fit your client’s requirements.

My own choice of CMS (Plone) was informed by the ’roundness’ of the software and community, and the degrees to which the system truly manages a broad and extensible range of content — without dragging me into system management issues.

Personally, I would not describe WordPress as a CMS. But that’s not a criticism 🙂

NOTE: This answer was originally posted at StackOverflow.com by Graham Perrin

Wordpress is a CMS. It did started as a blog centered software, but now includes many CMS features. It is listed in wikipedia List of content management systems and won a Packt Open Source CMS Award.

Wikipedia defines Content management system as a system which may support the following features:

• identification of all key users and their content management roles;
• the ability to assign roles and responsibilities to different content categories or types;
• definition of workflow tasks for collaborative creation, often coupled with event messaging so that content managers are alerted to changes in content (For example, a content creator submits a story, which is published only after the copy editor revises it and the editor-in-chief approves it.);
• the ability to track and manage multiple versions of a single instance of content;
• the ability to capture content (e.g. scanning);
• the ability to publish the content to a repository to support access to the content (Increasingly, the repository is an inherent part of the system, and incorporates enterprise search and retrieval.);
• separation of content’s semantic layer from its layout (For example, the CMS may automatically set the color, fonts, or emphasis of text.).

While having very limited workflow, wordpress does support most of those features.

For more complex scenarios, people usually prefer a more powerful CMS such as Drupal. I tried both and usually goes with wordpress where possible.

NOTE: This answer was originally posted at StackOverflow.com by zvikara