The article gives you the complete knowledge about the benefits of Service Detailing in Revit MEP. Are you aware of annotation and tagging in Revit? Lets take the first step by knowing the concepts of Annotation and Tagging in Revit.

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Let’s Discover What Are Revit Annotations

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• Annotations in Revit software are view specific that means you need to duplicate annotations for
every view.
• There are several types of annotations in Revit; they are as follows:
Tags
• Tags are the text labels or names for elements like doors, windows, walls, rooms, and many different
kinds of objects that architects usually require to reference in a collection of drawings. These tags
typically refer to different schedules or information in other portions of the drawing set and are
unique to view as they inserted within. In Revit software, tags are intelligent and bidirectional
symbols that report all the information saved in an object’s properties. You can also enter any value
instantly into the family properties or immediately into the tag itself.
Understand What Are Revit Annotations?

4. Once you tagged a particular element and
assigned the tag value, then the element
will hold that value until you eliminate it.
The value exists with the elements within
Revit software; it is not a property of the
tag. Therefore, it enables you to delete or
remove tags without having any concern of
losing the data recorded into the tag.
Furthermore, It also indicates that once an
element gets tagged with information in
one view, then, that same element will
report the same information in any
different view in which it is tagged. There
will be no need, to enter the info twice.
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5. • When families like doors and windows
placed into the project, they automatically
get assigned by a unique number. These
are sequentially numbered in the
sequence they set.
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6. Step to tag a door-
To tag a door, Annotate > Tag by class and
choose the door. To tag multiple objects at a
time, you can also apply the Tag All button. As
depending on the Door tag, the family placed
into the project may show different
information. However, usually, it will be just
the Mark value. The family’s mark number is in
the Properties window. To modify the door’s
Mark value, you can either edit it via the
Properties window with the element selected,
by clicking the tag itself or within a schedule.
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Doors and windows must number logically.

7. Dimensions
• Dimensions are used to carry the measure or
angle within the elements or parts of items. In
Revit software, a dimension is a bidirectional
annotation that certainly tags distance or size. It
means you can edit and update the distance
directly between the dimension strings to
relocate elements to a specific range individually.
Furthermore, the dimension automatically gets
updates as the distance between elements get
changes. Dimensions are the annotations, which
making them view-specific elements that seems
only in the view where it’s drawn. The
Dimension tools are on the Annotate tab. Like
every annotation in Revit, dimensions change to
the scale of the drawing. They will periodically
appear at the correct scale in the view. If you
turn the view scale, the dimensions become
resize automatically.
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8. Dimensions
• Here, by default, a linear string of dimensions merely is
a parallel dimensions entities. Non-parallel elements by
its real nature hold a dynamic dimensional relation.
Dimensions in Revit software can always read from the
bottom or else from the right following the standard
architectural sheet layout precepts. For placing a
dimension, you can choose any dimension tool and
start selecting entities in a sequence. You can also keep
selecting multiple objects in an assigned direction for
forming a dimension string over your drawing.
• Once the dimensions get placed, you can relocate them
by choosing the dimension and taking the blue grips.
With selecting and carrying on this element, you can
also transfer the witness line to a unique host element
without any need of recreating the entire dimension
string.
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Make sure that you simply annotate just that what is in your field of
work.
For example-
Don’t indicate structural sizes. Instead, have a typical note stating ‘Refer
structural drawings.’ The contractor should understand all sets of
documents in conjunction. By moving beyond your field of work you are
preparing yourself up for liability.

9. Rooms
• Rooms are 3D objects, in Revit. Also, it can get used for
3D environmental analysis, instead of indicating the
room name and area.
• For adding a room, you can follow this go Architecture >
Room & Area > Room. Also, choose the zone you in
which you want to add the room. Revit software will
automatically obtain the bounding walls. However,
beware that there are many techniques to calculate a
room’s area. To modify how Revit measures the area, go
to Architecture > Room & Area and click the arrow to
view more options, and also select Area and Volume
Calculations.
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10. Keynotes
• Annotating model elements Keynotes
are the medians. Rather than only
existing specific strings of text used to
label items, then they are a class or
family of objects connected to model
elements. It indicates that each
occurrence of annotation will always
associate with the same purpose and
that if one instance gets change, hence
all the others will also change.
• Thus, annotations do not need to copy
again and over again. Instead, keynotes
are set in a tab-delimited text file and
connected to the related objects
applying the keynoting tool involved in
the BIM software. For the same
purpose, keynote text is unable to edit
directly, where it appears – you can edit
it in the keynote *txt file
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11. Keynotes
• You can also enter Keynote principles directly in the keynote parameter field of the Family Type dialogue box, but it is
simpler to handle the keynote *txt file, where we can see all the keynotes as a group. In case, if the keynote available in
the text file is different from the one already present in the dialogue box, then the keynoting tool will overwrite the one
in the dialogue box if it’s in use on that object. Keynotes remain associated with a country’s specification system.
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12. Schedules
• Schedules are the most important as both a
Quality Assurance (QA) check as well as a
documentation system. Standard schedules
include walls, doors, windows, furniture, and
other equipment.
• Check the Steps to create a schedule:
•
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13. Schedules
• Open the Project Browser, and right-click on Schedule/Quantities > then select New Schedule/Quantities. Or alternatively
go to View > Create > Schedules > Schedule/Quantities.
• Choose the category, e.g., Doors or windows.
• In the fields list, you can choose the desired fields and click Add. The Typical fields include- Mark, Level, Width, Height, Fire
Rating, Family, and Type.
• Under the Grouping/Sorting tab, one can set sort by to Level, and review/check the Header and Blank line boxes.
• Furthermore, within the Grouping/Sorting tab, set the ‘Then By’ to Mark.
• In the Formatting tab, choose the Level field and check the Hidden field box. It ensures the Level does not repeat for every
entry. Instead, it will show up in a heading that we created in an initial step.
• Click the OK button.
• Selected fields in the schedule,
For example, Mark, you can edit it instantly within the schedule, and it is usually faster than editing via the plans.
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Source
• https://blog.nibt.education/2018/04/revit-
annotations/