I recently was asked to add an image caption to image field on a content type.  I added a field image caption and included it with Alt and Title field.  However, the image field was working fine with Wysiwyg inserted image but not working with the image field.
I started to investigate the problem and I came to conclusion.  But to understand the problem we have to start from the beginning.

As an administrator you need things to be as easy as possible so you don’t spend all your time bogged down with issues/complicated settings or even having to modify the source code on a regular basis.

Drupal is a free and open-source content management system written in PHP. When determining whether Drupal is a GOOD technology to use in general, there are three main aspects we need to consider.

Any enterprise that requires a fair amount of working with content is a likely candidate for Drupal and because it is so easily extended and flexible there aren’t any real limitations.

Drupal is a free and open source CMS written in PHP and distributed under the GNU General Public License. Drupal stems from a project by a Dutch university student, Dries Buytaert. The goal of the project was to provide a mechanism for Buytaert and his friends to share news and events.

Buytaert turned Drupal into an open source project in 2001, and the community readily embraced the concept and has expanded on its humble beginnings, creating what is now one of the most powerful and featurerich CMS platforms on the web.

spiral methodology provides an iterative and progressive approach to defining the requirements and design of your site using prototyping. Once an operational prototype is reached, the development phase of production starts and you proceed using a waterfall approach. The spiral model suggests that a series of four steps be performed before coding begins. The following briefly describes the activities in each pass of the spiral, starting in the center of the spiral.

1. Determine your objectives, your alternatives for meeting your objectives, and any constraints that must be met.