diff --git a/src/UnsupervisedClustering.jl b/src/UnsupervisedClustering.jl
index afc1999..271d75f 100644
--- a/src/UnsupervisedClustering.jl
+++ b/src/UnsupervisedClustering.jl
@@ -29,8 +29,7 @@ export concatenate,
     GeneticAlgorithm,
     ClusteringChain
 
-abstract type Algorithm end
-abstract type Result end
+include("abstract.jl")
 
 include("localsearch/gmm.jl")
 include("localsearch/kmeans.jl")
diff --git a/src/abstract.jl b/src/abstract.jl
new file mode 100644
index 0000000..6b12328
--- /dev/null
+++ b/src/abstract.jl
@@ -0,0 +1,2 @@
+abstract type AbstractAlgorithm end
+abstract type AbstractResult end
\ No newline at end of file
diff --git a/src/concatenate.jl b/src/concatenate.jl
index c4dce82..d93a332 100644
--- a/src/concatenate.jl
+++ b/src/concatenate.jl
@@ -1,8 +1,8 @@
-# function concatenate_k(result::Result, results::Result...)
+# function concatenate_k(result::AbstractResult, results::AbstractResult...)
 #     return result.k + sum([i.k for i in results])
 # end
 
-function concatenate_assignments(result::Result, results::Result...)
+function concatenate_assignments(result::AbstractResult, results::AbstractResult...)
     size = length(results)
     accumulated = zeros(Int, size)
     for i in 1:size
@@ -32,23 +32,23 @@ function concatenate_clusters(result::KmedoidsResult, results::KmedoidsResult...
     return vcat(result.clusters, [results[i].clusters .+ accumulated[i] for i in 1:size]...)
 end
 
-function concatenate_objective(result::Result, results::Result...)
+function concatenate_objective(result::AbstractResult, results::AbstractResult...)
     return result.objective + sum([i.objective for i in results])
 end
 
-function concatenate_objective_per_cluster(result::Result, results::Result...)
+function concatenate_objective_per_cluster(result::AbstractResult, results::AbstractResult...)
     return vcat(result.objective_per_cluster, [i.objective_per_cluster for i in results]...)
 end
 
-function concatenate_iterations(result::Result, results::Result...)
+function concatenate_iterations(result::AbstractResult, results::AbstractResult...)
     return result.iterations + sum([i.iterations for i in results])
 end
 
-function concatenate_elapsed(result::Result, results::Result...)
+function concatenate_elapsed(result::AbstractResult, results::AbstractResult...)
     return result.elapsed + sum([i.elapsed for i in results])
 end
 
-function concatenate_converged(result::Result, results::Result...)
+function concatenate_converged(result::AbstractResult, results::AbstractResult...)
     return result.converged && all([i.converged for i in results])
 end
 
diff --git a/src/ensemble/chain.jl b/src/ensemble/chain.jl
index 6d798a6..ab7f178 100644
--- a/src/ensemble/chain.jl
+++ b/src/ensemble/chain.jl
@@ -1,15 +1,15 @@
 @doc """
-    ClusteringChain(algorithms::Algorithm...)
+    ClusteringChain(algorithms::AbstractAlgorithm...)
     
 ClusteringChain represents a chain of clustering algorithms that are executed sequentially. It allows for applying multiple clustering algorithms in a specific order to refine and improve the clustering results.
 
 # Fields
 - `algorithms`: the vector of clustering algorithms that will be executed in sequence.
 """
-Base.@kwdef struct ClusteringChain <: Algorithm
-    algorithms::AbstractVector{<:Algorithm}
+Base.@kwdef struct ClusteringChain <: AbstractAlgorithm
+    algorithms::AbstractVector{<:AbstractAlgorithm}
 
-    function ClusteringChain(algorithms::Algorithm...)
+    function ClusteringChain(algorithms::AbstractAlgorithm...)
         return new(collect(algorithms))
     end
 end
diff --git a/src/localsearch/gmm.jl b/src/localsearch/gmm.jl
index 80bc80a..43c5389 100644
--- a/src/localsearch/gmm.jl
+++ b/src/localsearch/gmm.jl
@@ -23,7 +23,7 @@ The GMM is a clustering algorithm that models the underlying data distribution a
   Maximum likelihood from incomplete data via the EM algorithm.
   Journal of the royal statistical society: series B (methodological) 39.1 (1977): 1-22.
 """
-Base.@kwdef mutable struct GMM <: Algorithm
+Base.@kwdef mutable struct GMM <: AbstractAlgorithm
     estimator::CovarianceMatrixEstimator
     verbose::Bool = DEFAULT_VERBOSE
     rng::AbstractRNG = Random.GLOBAL_RNG
@@ -58,7 +58,7 @@ GMMResult struct represents the result of the GMM clustering algorithm.
 - `converged`: indicates whether the algorithm has converged to a solution.
 - `k`: the number of clusters.
 """
-mutable struct GMMResult{I <: Integer, R <: Real} <: Result
+mutable struct GMMResult{I <: Integer, R <: Real} <: AbstractResult
     assignments::Vector{I}
     weights::Vector{R}
     clusters::Vector{Vector{R}}
diff --git a/src/localsearch/kmeans.jl b/src/localsearch/kmeans.jl
index 28922e7..5b36031 100644
--- a/src/localsearch/kmeans.jl
+++ b/src/localsearch/kmeans.jl
@@ -24,7 +24,7 @@ The k-means is a clustering algorithm that aims to partition data into clusters
   Least squares quantization in PCM.
   IEEE transactions on information theory 28.2 (1982): 129-137.
 """
-Base.@kwdef mutable struct Kmeans <: Algorithm
+Base.@kwdef mutable struct Kmeans <: AbstractAlgorithm
     metric::SemiMetric = SqEuclidean()
     verbose::Bool = DEFAULT_VERBOSE
     rng::AbstractRNG = Random.GLOBAL_RNG
@@ -56,7 +56,7 @@ KmeansResult struct represents the result of the k-means clustering algorithm.
 - `converged`: indicates whether the algorithm has converged to a solution.
 - `k`: the number of clusters.
 """
-mutable struct KmeansResult{I <: Integer, R <: Real} <: Result
+mutable struct KmeansResult{I <: Integer, R <: Real} <: AbstractResult
     assignments::Vector{I}
     clusters::Matrix{R}
     objective::R
diff --git a/src/localsearch/kmedoids.jl b/src/localsearch/kmedoids.jl
index 5b5580a..e6bb17c 100644
--- a/src/localsearch/kmedoids.jl
+++ b/src/localsearch/kmedoids.jl
@@ -16,7 +16,7 @@ The k-medoids is a variation of k-means clustering algorithm that uses actual da
 
 # References
 """
-Base.@kwdef mutable struct Kmedoids <: Algorithm
+Base.@kwdef mutable struct Kmedoids <: AbstractAlgorithm
     verbose::Bool = DEFAULT_VERBOSE
     rng::AbstractRNG = Random.GLOBAL_RNG
     tolerance::Real = DEFAULT_TOLERANCE
@@ -47,7 +47,7 @@ KmedoidsResult struct represents the result of the k-medoids clustering algorith
 - `converged`: indicates whether the algorithm has converged to a solution.
 - `k`: the number of clusters.
 """
-mutable struct KmedoidsResult{I <: Integer, R <: Real} <: Result
+mutable struct KmedoidsResult{I <: Integer, R <: Real} <: AbstractResult
     assignments::Vector{I}
     clusters::Vector{I}
     objective::R
diff --git a/src/localsearch/ksegmentation.jl b/src/localsearch/ksegmentation.jl
index 0ff8158..cc3f911 100644
--- a/src/localsearch/ksegmentation.jl
+++ b/src/localsearch/ksegmentation.jl
@@ -1,4 +1,4 @@
-Base.@kwdef mutable struct Ksegmentation <: Algorithm
+Base.@kwdef mutable struct Ksegmentation <: AbstractAlgorithm
 end
 
 const KsegmentationResult{I <: Integer, R <: Real} = KmeansResult{I, R}
diff --git a/src/markov.jl b/src/markov.jl
index 81e2502..f64bf40 100644
--- a/src/markov.jl
+++ b/src/markov.jl
@@ -12,7 +12,7 @@ function stochastic_matrix(k::Integer, from::AbstractVector{<:Integer}, to::Abst
     return matrix
 end
 
-function stochastic_matrix(from::Result, to::Result)
+function stochastic_matrix(from::AbstractResult, to::AbstractResult)
     @assert from.k == to.k
     return stochastic_matrix(from.k, from.assignments, to.assignments)
 end
diff --git a/src/metaheuristic/generation.jl b/src/metaheuristic/generation.jl
index c0ea57e..001de16 100644
--- a/src/metaheuristic/generation.jl
+++ b/src/metaheuristic/generation.jl
@@ -1,9 +1,9 @@
 mutable struct Generation
-    population::AbstractVector{<:Result}
+    population::AbstractVector{<:AbstractResult}
     empty::Set{Integer}
 
     function Generation()
-        return new(Vector{Result}(), Set{Int}())
+        return new(Vector{AbstractResult}(), Set{Int}())
     end
 end
 
@@ -21,7 +21,7 @@ function remove(generation::Generation, i::Integer)
     return nothing
 end
 
-function add!(generation::Generation, result::Result)
+function add!(generation::Generation, result::AbstractResult)
     if length(generation.empty) > 0
         generation.population[pop!(generation.empty)] = result
     else
@@ -50,7 +50,7 @@ function get_best_solution(generation::Generation)
     return best_solution
 end
 
-function crossover(parent1::Result, parent2::Result, data::AbstractMatrix{<:Real}, rng::AbstractRNG)
+function crossover(parent1::AbstractResult, parent2::AbstractResult, data::AbstractMatrix{<:Real}, rng::AbstractRNG)
     k = parent1.k
 
     weights = zeros(k, k)
diff --git a/src/metaheuristic/geneticalgorithm.jl b/src/metaheuristic/geneticalgorithm.jl
index 63733b3..02c110f 100644
--- a/src/metaheuristic/geneticalgorithm.jl
+++ b/src/metaheuristic/geneticalgorithm.jl
@@ -1,6 +1,6 @@
 @doc """
     GeneticAlgorithm(
-        local_search::Algorithm
+        local_search::AbstractAlgorithm
         verbose::Bool = DEFAULT_VERBOSE
         max_iterations::Integer = 200
         max_iterations_without_improvement::Integer = 150
@@ -20,8 +20,8 @@ GeneticAlgorithm represents a clustering algorithm that utilizes a genetic algor
 
 # References
 """
-Base.@kwdef struct GeneticAlgorithm <: Algorithm
-    local_search::Algorithm
+Base.@kwdef struct GeneticAlgorithm <: AbstractAlgorithm
+    local_search::AbstractAlgorithm
     verbose::Bool = DEFAULT_VERBOSE
     max_iterations::Integer = 200
     max_iterations_without_improvement::Integer = 150
@@ -57,7 +57,7 @@ genetic_algorithm = GeneticAlgorithm(local_search = kmeans)
 result = fit(genetic_algorithm, data, k)
 ```
 """
-function fit(meta::GeneticAlgorithm, data::AbstractMatrix{<:Real}, k::Integer)::Result
+function fit(meta::GeneticAlgorithm, data::AbstractMatrix{<:Real}, k::Integer)::AbstractResult
     generation = Generation()
 
     best_objective = 0.0
diff --git a/src/metaheuristic/multistart.jl b/src/metaheuristic/multistart.jl
index 2e2f077..3330e49 100644
--- a/src/metaheuristic/multistart.jl
+++ b/src/metaheuristic/multistart.jl
@@ -1,6 +1,6 @@
 @doc """
     MultiStart(
-        local_search::Algorithm
+        local_search::AbstractAlgorithm
         verbose::Bool = DEFAULT_VERBOSE
         max_iterations::Integer = 200
     )
@@ -12,8 +12,8 @@ The MultiStart approach repeatedly applies a clustering algorithm to generate mu
 - `verbose`: controls whether the algorithm should display additional information during execution.
 - `max_iterations`: represents the maximum number of iterations the algorithm will perform before stopping.
 """
-Base.@kwdef struct MultiStart <: Algorithm
-    local_search::Algorithm
+Base.@kwdef struct MultiStart <: AbstractAlgorithm
+    local_search::AbstractAlgorithm
     verbose::Bool = DEFAULT_VERBOSE
     max_iterations::Integer = 200
 end
@@ -46,7 +46,7 @@ multi_start = MultiStart(local_search = kmeans)
 result = fit(multi_start, data, k)
 ```
 """
-function fit(meta::MultiStart, data::AbstractMatrix{<:Real}, k::Integer)::Result
+function fit(meta::MultiStart, data::AbstractMatrix{<:Real}, k::Integer)::AbstractResult
     best_result = fit(meta.local_search, data, k)
 
     if meta.verbose
diff --git a/src/metaheuristic/randomswap.jl b/src/metaheuristic/randomswap.jl
index 3dcd08e..1b6d27f 100644
--- a/src/metaheuristic/randomswap.jl
+++ b/src/metaheuristic/randomswap.jl
@@ -1,6 +1,6 @@
 @doc """
     RandomSwap(
-        local_search::Algorithm
+        local_search::AbstractAlgorithm
         verbose::Bool = DEFAULT_VERBOSE
         max_iterations::Integer = 200
         max_iterations_without_improvement::Integer = 150
@@ -19,8 +19,8 @@ RandomSwap is a meta-heuristic approach used for clustering problems. It follows
   Efficiency of random swap clustering.
   Journal of big data 5.1 (2018): 1-29.
 """
-Base.@kwdef struct RandomSwap <: Algorithm
-    local_search::Algorithm
+Base.@kwdef struct RandomSwap <: AbstractAlgorithm
+    local_search::AbstractAlgorithm
     verbose::Bool = DEFAULT_VERBOSE
     max_iterations::Integer = 200
     max_iterations_without_improvement::Integer = 150
@@ -54,7 +54,7 @@ random_swap = RandomSwap(local_search = kmeans)
 result = fit(random_swap, data, k)
 ```
 """
-function fit(meta::RandomSwap, data::AbstractMatrix{<:Real}, k::Integer)::Result
+function fit(meta::RandomSwap, data::AbstractMatrix{<:Real}, k::Integer)::AbstractResult
     iterations_without_improvement = 0
 
     best_result = fit(meta.local_search, data, k)
diff --git a/src/print.jl b/src/print.jl
index a921123..8895867 100644
--- a/src/print.jl
+++ b/src/print.jl
@@ -2,7 +2,7 @@
 #     return (number == 0) ? 1 : (log10(number) + 1)
 # end
 
-print_objective(result::Result) = print_objective(result.objective)
+print_objective(result::AbstractResult) = print_objective(result.objective)
 function print_objective(objective::Real)
     @printf("%12.4f ", objective)
     return nothing
@@ -13,13 +13,13 @@ function print_iteration(iteration::Integer)
     return nothing
 end
 
-print_iterations(result::Result) = print_iterations(result.iterations)
+print_iterations(result::AbstractResult) = print_iterations(result.iterations)
 function print_iterations(iterations::Integer)
     @printf("%8dit ", iterations)
     return nothing
 end
 
-print_elapsed(result::Result) = print_elapsed(result.elapsed)
+print_elapsed(result::AbstractResult) = print_elapsed(result.elapsed)
 function print_elapsed(elapsed::Real)
     @printf("%10.2fs ", elapsed)
     return nothing
@@ -30,7 +30,7 @@ function print_change(change::Real)
     return nothing
 end
 
-function print_result(result::Result)
+function print_result(result::AbstractResult)
     print_objective(result)
     print_iterations(result)
     print_elapsed(result)
diff --git a/src/result/counts.jl b/src/result/counts.jl
index 49bfe22..ac3352a 100644
--- a/src/result/counts.jl
+++ b/src/result/counts.jl
@@ -1,3 +1,3 @@
-function counts(result::Result)
+function counts(result::AbstractResult)
     return StatsBase.counts(result.assignments, result.k)
 end
diff --git a/src/seed.jl b/src/seed.jl
index dbc2ed5..152b47b 100644
--- a/src/seed.jl
+++ b/src/seed.jl
@@ -1,4 +1,4 @@
-function seed!(algorithm::Algorithm, seed::Integer)
+function seed!(algorithm::AbstractAlgorithm, seed::Integer)
     Random.seed!(algorithm.rng, seed)
     return nothing
 end
diff --git a/test/gmmsk.jl b/test/gmmsk.jl
index ccd8160..88c6a16 100644
--- a/test/gmmsk.jl
+++ b/test/gmmsk.jl
@@ -1,4 +1,4 @@
-Base.@kwdef mutable struct GMMSK <: UnsupervisedClustering.Algorithm
+Base.@kwdef mutable struct GMMSK <: UnsupervisedClustering.AbstractAlgorithm
     verbose::Bool = false
     rng::AbstractRNG = Random.GLOBAL_RNG
     tolerance::Real = 1e-3