From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED.yTvCNOh9TRCAIcX40YItlQ.user.gioia.aioe.org!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Ada in command / control systems Date: Fri, 8 Mar 2019 18:38:41 +0100 Organization: Aioe.org NNTP Server Message-ID: References: <2199b15b-d704-403f-a6c4-00fab29792d5@googlegroups.com> <72738cc8-3f65-4cc1-8c61-b1166cb5e3c2@googlegroups.com> <9807ec3a-4c34-4641-acfa-e9cf22de95ce@googlegroups.com> <51611452-1f49-4d8d-b93d-363cbbee29d0@googlegroups.com> <6a0fe4c2-a8e6-4d15-8cbf-f5a85ba0cd86@googlegroups.com> <1a5fae09-bbbf-4bdb-be8c-6a2e3fd70dfa@googlegroups.com> <1c62f33a-d3a0-4a64-b66f-c82328cfb52a@googlegroups.com> <7e03c9b4-dd18-41a7-8d0b-4f5cea7df0b5@googlegroups.com> NNTP-Posting-Host: yTvCNOh9TRCAIcX40YItlQ.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 X-Notice: Filtered by postfilter v. 0.9.2 Content-Language: en-US Xref: reader01.eternal-september.org comp.lang.ada:55814 Date: 2019-03-08T18:38:41+01:00 List-Id: On 2019-03-08 18:00, Simon Wright wrote: > You're certainly going to partition systems like that into domains > (you're not going to mix the business logic with the database accesses > for the library or the control algorithms for the tracker radar). And > it's not unreasonable that you might use different, appropriate, tools > for the different domains: Simulink for the tracker radar control, for > example, or a tool which supports data modelling and statecharts for the > business logic of library management. I am skeptical about that approach in general. For example attempts to use tools and specialized languages for GUI design. It does not work well. I think difficulties to glue the system together outweigh possible advantages. > And if the tools can generate code, so much the better. Of course > there's a verification issue; but the system engineers will (at least > initially) validate the model. Good luck maintaining and supporting that mess. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de