vom papier zur normkonformen mobile medical app ein ...€¦ · structure (if gitflow is used)...
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Vom Papier zur normkonformen Mobile Medical App –
Ein Erfahrungsbericht
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we engineer
medical
software
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welcomeMedConf2019
page
03
Bernd Seidenspinner
Lead Software
Architect
Miriam Schulze
Director Medical
Engineering
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we are certified by TÜV
Hessen according to ISO
9001 and ISO 13485 and
engineer software in
accordance with IEC 62304
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BAYOOMEDat a glance
page
05
most experienced
250 person years
experience in medical
software development
> 800 medical customers
100+ employees
Darmstadt & Munich
widespread expertise
great passion
medical softwaremobile medical apps for iOS
(iPhone & iPad) and Android.
device classes I, IIa, IIb and III
software safety classes B & C
cloud & web applications
the leading software
development company for
regulated development of
medical apps and medical
(standalone-) software
ISO
13485
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the beginning
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starting pointa analog product
page
07
articulating paper
„"Even the smallest contacts in the μ-range can cause
dysfunctions (usually pain dysfunction syndrome) in
patients and even significantly hinder swallowing. The
representation of the occlusal contact conditions
therefore places a very high requirement on the test
equipment. "
Quelle: http://bausch.fm/Blackbelt/bkdb/bk_templates/bausch/de/products/FMPro.php?-DB=bk_products&-Lay=weblayout&-
Format=proderg.html&-SortField=headline_e&-SortOrder=ascend&-Max=1&-Op=bw&artno=8m&-Find
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goaldigitalization of product and process
page
08
combination analog and digital
more than just a digital pedant to the analog product
added value for the dentist
system: handheld + iPad app
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page
09
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let’s do it
agile, please
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implementationscrum: process & advantages
page
011
wishlist finished
product(incl. sofware
design, tests,
verification and
documentation)
3 weeks
Plan Do Check
• empirical process control: transparency, inspection, adaption
• fixed time boxes
• results every 3 weeks
scrum imposes a few constraints on the development process
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implementationscrum: process & advantages
page
012
improve
sprint
retrospective
dosprint
planning sprint review
sprint
3 weeks
daily scrum
sprint
backlog
product backlog
finished
product
BAYOOMED development team
Customer stakeholder
BAYOOMED product owner
BAYOOMED scrum master
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agile?!what about documentation
page
013
02creation and maintenance of
software development plan
according IEC 62304
03documentation plan contains
relevant documents,
templates and storage
locations
01“Definition of Done” includes
documentation, verification
and tracing activities
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specify, design,
implement, verify
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implementationtool chain
page
015
Enterprise Architect for
requirements management
Word and Excel for test
plans, memo, strategy paper,
etc. using existing templates
specify
Enterprise Architect for sw
architecture and design
tracing is done in Enterprise
Architect as well
design
GIT for revision and code
control
DevOps for sprint
organization
feature and test develop-
ment in XCode
implement
GIT in combination with
DevOps and separate build
server for automated tests
verify
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implementationCI/CD pipeline iOS app
page
016
macOS & XCode
git
iPad / iOS
Safari browser
development
macOS VM
XCode / iOS emulator
git
build agent
build & (unit)test
Windows VM
release agent
release
internal QA / validation
QA Testflight
customer limited number of
beta Testers
staging Testflight
released version
AppStore
MS DevOps
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iOS - lessons
learned
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Apples update strategy
causes challenges:
AppStore policy change
causes need for updating
XCode
causes need for updating
macOS
development process
lessons learned
integration of DevOps & iOS
& macOS was less painful
than expected
AppStore distribution for
releases remains manual
process
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there is only very limited use
of testing the app with beta
versions of iOS
better to invest efforts into
higher test automation
development process
lessons learned
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no iPad mini support: no
device type detection
possible
undocumented API calls
development process
lessons learned
missing high level API for
network communication
custom C code and
SOUPs
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versioning of subsystems
imposes changes to
repository structure (if gitflow
is used)
independent versioning of
app and cloud
independent (linked) git
repositories
development process
lessons learned
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just upload it to
the app store
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app storesending hardware to apple
page
023
“Your app includes content or features that users
aren't able to use in this version. Apps that are for
demonstration, trial, or up-sell purposes are not
appropriate for the App Store.”
“Demo”-mode unregistered”
“We noticed that your app has iTunes File Sharing enabled.
-Which features of your app require iTunes File Sharing?
-What type of files would users normally be transferring with iTunes?
-Where specifically in the app would users access these shared files?”
detailed description of airdrop usage
“Which specific features of the
app utilize audio functionality
while the app is running in the
background?
Where can these features be
located within the binary?”
deactivation
“We have started the review of your app, but we are not able to
continue because we need access to a video that demonstrates your
app: in use on a physical iOS device, which shows the pairing and
interaction with the designated hardware.
Please ensure the video you provide shows a physical iOS device (not
a simulator)”
no need for sending a handheld video
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yet, another
update
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updateshow to handle them
page
025
new iPadscheck iPad versions within the application
lock app if required
no restrctions in app store possible
part of post-market
surveillance activities
new iOScloud db containing compatibility information
unblocking after verification (automated and
manual tests)
new handheld firmware
compiled into app
creation of new app version for firmware updates
app store guidelines compatibility check
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discussion
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thank you
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development processlessons learned
page
028
versioning of subsystems imposes changes to repository
structure (if gitflow is used)
independent versioning of app and cloud
independent (linked) git repositories
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development processlessons learned
page
029
no iPad mini support: no device type detection possible
undocumented API calls
missing high level API for network communication
custom C code and SOUPs
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implementationCI/CD lessons learned
page
030
Apples update strategy causes challenges:
AppStore policy change
causes need for updating Xcode
causes need for updating macOS
Integration of DevOps & iOS & macOS was less painful than
expected
AppStore distribution for releases remains manual process