Which two essential tasks for requirements management are least supported by text processing tools?

Documentation of requirements and goals is the correct choice because text processing tools primarily focus on handling and manipulating text rather than providing advanced functionalities necessary for requirements management tasks. While they can certainly help in documenting requirements by creating text files or simple documents, the process of organizing, visualizing, and managing the intricate relationships and context of those requirements often requires more specialized tools.

The documentation of requirements involves not just writing text but also ensuring that the requirements are clear, complete, and understandable. This can include the integration of various formats and visual elements which text processing applications are not ideally equipped to handle. In contrast, dedicated requirements management tools offer advanced features for structuring and maintaining complex requirements, enabling better collaboration with stakeholders.

The other tasks mentioned—version management of individual requirements, requirements tracing, and creation of graphic models—can often be supported in various ways by text processing tools. While these may still be better served by specific requirements tools, text processing tools can provide functionalities like version control through simple file management techniques or allow basic tracing through structured documents. However, for documenting and visualizing requirements and goals effectively, specialized tools provide the necessary support that text processing tools lack.