Having started his career with IBM, John Lerwill has, since 1979, been involved with the latest in the development of desktop computing, and so has been familiar with Microsoft Corporation's systems and products from their earliest days. However, he's also gained quite a lot of experience in UNIX/LINUX, SAP, and IBM mainframe systems! Combined with lengthy business and software development experience, he is well placed to help YOU.

Success Stories
Each of the following selected assignments have entailed considerable insight into, and experience of, the systems and technical infrastructure of the client's project, in addition to well-honed documentation skills.

Fuller details of these, and of many other assignments, can be provided on request.

Click here for selected testimonials.

2001 to 2002 :
Plain Words Limited

Technical Authoring services to H.M. Government (EDS) CSA project's batch infrastructure development group. Documentation accomplished according to project standards in respect of 10 major Technical Guides - using Word and Visio - working in close collaboration with batch infrastructure developers.


2000 to 2001 :
Promar International PLC

Evaluation and documentation of an acquired software product (Hylton Nomis - a Farm Accounts package with extensive functionality); PC and networked based. Subsequent to software audit, evaluation and reporting on findings, John was then responsible for Technical Authoring and writing the intranet-based product software documentation (involving more than 400 major software functions) in HTML/Javascript.


1979 to 1998 :
The Heraeus Group

Key systems consultancy and support to this German subsidiary in the installation of integrated packaged and bespoke applications, initially on 8-bit desk-top computer systems, through UNIX-based multi-location/multi-user access, thence onto European-based SAP R/3; three generations of development from an initial green-field site, over 19 years. Development included provision of full user documentation.

Selected Testimonials
"….what an excellent document…….it's so well indexed and cross-referenced as to make it very useable as both a reference manual and a self-training manual. I'm impressed how you've managed to get enough technical understanding of all the related subjects and pull so many resources together into such a coherent form". (2002 - Reviewer's comments).

".....it is generally agreed that you were instrumental in assimilating the data for a smooth transfer to SAP". (1999 - General Manager, Heraeus Quartz Ltd - U.K. subsidiary of a large and long-established (mid-19th c.) German manufacturing company).

Please note that John has an in-depth background in applications' software development. He began with IBM and subsequently had supervisory and project leader rôles with Chrysler (UK) and British Oxygen before becoming freelance in 1979. His implementation record, particularly with Chrysler, was second to none. At Chrysler he was also chair of a Technical Standards sub-committee, as a result of which he personally drafted a new Technical Standards manual.

Subsequently, John built up a successful systems and software consultancy with a small-business orientation, and employed a number of staff. John has specifically concentrated on documentation consultancy since 1998.

John says, "My primary areas of experience have been in providing overall systems and software consultancy support in Manufacturing, Engineering and Distribution (focusing on Order Processing, Billing, Production and Stock Control, including Accounting (ledgers) applications). I have an innate ability to recognize potential problems. I have a special expertise with regard to documentation....But my main interest is in providing a quality service!"

Clients said, in his early years as a freelance:

".....Mr. Lerwill is an experienced and competent systems professional......we have always found him to be thoroughly professional and dedicated."

".....He was involved in design, programming, system testing and implementation.... successfully and on time, and I have no hesitation in giving this reference for someone I consider to be a first class analyst and programmer."



This website & content © 2007, John Lerwill.
" ...what an excellent document...it's so well indexed and cross-referenced as to make it very useable as both a reference manual
and a self-training manual...
"

Thank you for visiting. Whatever your requirements may be in software and/or systems documentation, why not speak to us?

At the very least, we can give you a free, frank assessment of what can or cannot be done. The decision as to whether to commit to our proposals will always be with you, without obligation.

We are confident that with solid experience in applied business computing in the UK, going back more than 30 years, we will be able to significantly help you - and your business!


Birmingham-based, but able to serve any requirement in England.

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